Economics-Paper-XI-Environmental-Economics-I-English-Version-munotes

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1 Module I
1
INTRODUCTION TO ENVIRONMENTAL
ECONOMICS -I
Unit Structure:
1.0 Overview
1.1 Unit Objectives
1.2. Origin of Environmental Economics
1.3. Meaning of Environmental Economics
1.4. Nature of Environmental Economics
1.5. Scope of Environmental Economic s
1.6. Significance of Environmental Economics
1.7. Interlink between Environment and Economy
1.8. Summary
1.9. Exercise Questions
1.10. Suggested Readings
1.0 UNIT OVERVIEW
This unit provides an introduction to the meaning and scope of
environmental econ omics. The unit explains why the discipline is
important; the linkages between the economy and the environment; the
origins and significance of environmental economics; and the scope of the
discipline. The unit then provides an overview of key economic iss ues and
concepts that will be employed throughout the module.
1.1 UNIT OBJECTIVES
• To explain the nature and scope of environmental economics.
• To explain how the economy and the environment are linked and the
uses made of the environment by the economy.
• To explain the significance of environmental economics.
Unit Learning Outcomes
By the end of this unit, students should:
• have gained a knowledge of the main interactions between the
environment and the economy and the physical constraints that place
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2 • be familiar with the nature and scope of environmental economics and
what is included in the discipline
• be familiar with significance of environmental economics.
1.2 ORI GINS OF ENVIRONMENTAL ECONOMICS
Environmental economics dev eloped in its present form in the 1960s as a
result of the intensification of pollution and the heightened awareness
among the general public in Western countries about the environment and
its importance to our existence.
Economists became aware that, for economic growth to be indefinitely
sustainable, the economic system needs to take into account the uses of the
environment that we have already mentioned, so that natural resources are
not depleted and so that the environment is not overused as a waste si nk.
Environmental economists view the environment as a form of natural
capital which performs life support, amenity, and other functions that
cannot be supplied by man -made capital. This stock of natural capital
includes natural resources plus ecological s ystems, land, biodiversity, and
other attributes.
The growth of environmental economics in the 1970s was initially within
the neoclassical paradigm. In general, this approach to the environment is
concerned with issues of market failure, inappropriate reso urce allocation,
and how to manage public goods. There was little concern for the
underlying relationships between the economy and the environment.
Concerns about the limits of this approach to environmental economics led
some environmental economists to d evelop what is now referred to as
ecological economics. Ecological economics views the relationship of the
economy and the environment as central. Thus, any analysis places
economic activity within the environment. This distinction is best
illustrated with reference to debates concerning sustainable development
and the difference between weak and strong sustainability. Ecological
economics supports the notion of strong sustainability. This view of
sustainability assumes that not all forms of capital (ie hum an and natural)
are perfectly substitutable.
1.3 MEA NING OF ENVIRONMENTAL ECONOMICS
According to Arun Balasubramanian, ―no longer is economics merely a
science of production and distribution, it has to take into account the
ecological repercussions of economic activities that could affect both
production and distribution. It means that ec onomics as a subject cannot
exist in isolation, it cannot even be a mere study of how goods and
services are produced, but at the same time it has to take into consideration
the impacts of the use of resources on the environment. The impacts may
be in the form of externality, pollution, exhaustion, etc. Any study on the
economic content of production, distribution, development, etc., cannot be
completed without touching upon theenvironmental aspects like
externality, pollution, damage, exhaustion, depletion etc. munotes.in

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Introduction to Environmental
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3 Environmental economics can therefore be defined as that ―part of
economics whichdeals with interrelationship between environment and
economic development and studied the ways and means by which the
former is not impaired nor the latter impeded It is thus a branch of
economics which discusses about the impacts of interaction betweenmen
and nature and finds human solutions to maintain harmony between men
and nature.Environmental economics teaches us how to promote economic
growth of nations withleast en vironmental damage. Classical and
neoclassical school of thoughtsunderestimated the environmental issues of
production and consumption, since theyconsidered these issues merely as
social issues. When the environmental goods get transferred into economic
goods, the problems of environmental damage crop up, andtherefore the
need to interact with economic principles.
1.4 NATURE OF ENVIRONMENTAL ECONOMICS

1. Positive and Normative aspects:
Environmental economics is an application of scientific theories and
general application of welfare economics. When we study the cause
and effect relationship, it covers the positive aspect. For example, the
laws of thermodynamics are equally applicable to economic process.
If the problem is related to policy measures, then it is c onsidered as
normative aspect. Therefore, environmental economics is a normative
science because it prescribes the goals of environmental policy.

2. A Study of Micro and Macro Aspects:
We generally observe crowded market places, industrial units, and
even r esidential areas in a city like, Delhi. We do not get enough fresh
air at these places. Its solution lies in micro level planning. On the
other -hand, when the pollution problem is related to the economy as a
whole such as rise in temperature, then it is re lated to macro aspect of
environmental planning.

Environmental economics draws more from microeconomics than
from macroeconomics. It focuses primarily on how and why people
make decisions that have consequences for the natural environment. It
is concerned also with how economic institutions and policies can be
changed to bring these environmental impacts more into balance with
human desires and the needs of the ecosystem.

3. As Static and Dynamic:
Environmental economics deals with economic and managerial as pects
of pollution and natural resources. It interacts between human beings
and their physical surroundings. It studies the impact of pollution on
human beings and suggests national utilization of resources in a proper
way so that there may be an increase in social welfare or minimization
of social costs.

Environmental economics is also concerned, with the natural
environment, but not exclusively so. For example, man -made and munotes.in

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Environmental Economics
4 cultural or social environments may also be a part of the nature of
environmental economics

4. Environmental Pollution as an Economic Problem:
Environmental pollution is an economic problem because it requires us
to make choices and to resolve conflicts of interests. It is an economic
problem because the means by which pollution can be r educed are
themselves resources using. Further, it also reduces the value of some
resources that society has at its disposal. Economic growth can affect
environmental quality under different situations. Environmental
quality can increase with economic grow th. Thus increased incomes,
for example, provide the resources for public services.

5. As a Social Science:
Environmental economics deals with economic and managerial
aspects of pollution and natural resources. It interacts between human
beings and their ph ysical surroundings. It studies the impact of
pollution on human beings and suggests rational utilization of
resources in a proper way so that there may be an increase in social
welfare or minimization of social costs.

1.5 SCOPE OF ENVIRONMENTAL ECONOMI CS
Environmental economics is considered both a positive and a normative
science. Therefore, it has wide scope.
1. Economy -environment analysis:
Environmental economics is primarily concerned with the impact of
economic activities on environment and its implic ations for the individual
firm, industry and the economy as a whole. Economists have formulated
economy -environment models to explain the various economic activities
and their external effects. For example, the Material Balance Model and
the Leontief Abate ment Model explain these externalities.
2. Eco-development:
The main objective of environmental economics is to maintain a balance
between economic development and environmental quality. In order to
achieve it, environmental economists have to explore the var ious socio -
economic possibilities to reduce pollution and uplift the standard of living
of the people. This objective gained momentum after the publication of the
Report on Limits to Growth
3. Welfare approach:
Environmental economics has emerged as a discipl ine to tackle
environmental problems from an economic welfare framework. The
welfare framework covers scarce resources and market failures due to
property rights and ethical aspects of different problems of pollution. Thus
it suggests the best possible mea ns to tackle the environmental problems.
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Introduction to Environmental
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5 4. Dynamic and stock -flow analysis:
The mainstream economics is largely confined to the static problems of
market behaviour. But environmental management issues are about
resources and are dynamic in nature. Moreover, resources have a stock
and they have a rate of depletion and replenishment such as oil, minerals,
and forests. Thus there is the inevitable stock -flow dimension to
environmental issues.

5. Environmental values:
Environmental issues are about resources. The neo-classical economists
have analysed the use of various resources like fisheries, forests, fossil
fuels and water in a rational manner and with environmental values. In
fact, environmental values are economic values. It is important for the
society to c onserve its limited resources in the interest of economic
efficiency and welfare.

6. Clean Technology:
Presently environmental pollution is caused by misuse of existing
technology and failure to develop better one. Environmental economists
are in favour of a ppropriate and clean technologies which provide the
most rational use of natural resources and energy and to protect the
environment.

7. Conservation Policy:
The longstanding foundation of environmental economics lies in
conservation economics which tends to emphasise the impact of
economic activities on demand for productive resources and energy
resources. It suggests the optimal strategy in the utilization of natural
resources in a rational manner.
8. Multi -disciplinary base:
Environmental economics is inheren tly a multi -disciplinary subject. It
consists of an integration of many varied disciplines such as biology,
ecology, physical sciences, ethics and main stream economics.
Therefore, it has wide scope

1.6 SIGNIFIC ANCE OF ENVIRONMENTAL
ECONOMICS

1. Environm ental economics will help you understand some important
and controversial issues – such as climate change policy, nuclear power,
recycling policy, and traffic congestion charging . This is an exciting field
of economics to study and very much at the heart o f many public debates
and controversies.
2. Environmental economics is primarily concerned with the impact of
economic activities on environment and its implications for the
individual firm, industry and the economy as a whole. Economists have munotes.in

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6 formulated e conomy -environment models to explain the various
economic activities and their external effects.
3. The main significance of environmental economics is to maintain a
balance between economic development and environmental quality. In
order to achieve it, en vironmental economists are exploring the various
socio -economic possibilities to reduce pollution and uplift the standard
of living of the people.
4. Environmental economics aims to tackle environmental problems
from an economic welfare framework. The wel fare framework covers
scarce resources and market failures due to property rights and ethical
aspects of different problems of pollution. Thus it suggests the best
possible means to tackle the environmental problems.
5. Environmental issues are about resou rces. The neo -classical
economists have analyzed the use of various resources like fisheries,
forests, fossil fuels and water in a rational manner and with
environmental values. In fact, environmental values are economic
values. It is important for the soc iety to conserve its limited resources in
the interest of economic efficiency and welfare.
6. Presently environmental pollution is caused by misuse of existing
technology and failure to develop better one. Environmental economists
are in favor of appropria te and clean technologies which provide the
most proper use of economic resources, energy and protecting the
environment. Environmental economics is inherently a multi -
disciplinary subject. It consists of an integration of many varied
disciplines such as b iology, ecology, physical sciences, ethics and
mainstream economics. Research under this theme may include:
 Healthcare & Development
 Efficiency in the Healthcare Industry
1.7 ECONOMY AND THE ENVIRONMENT
Man cannot exist in isolation. Man‘s life is intercon nected with various
other living and non -living things. His life also depends on social,
political, economic, ethical, philosophical and other aspects of social
system. In fact, the life of human beings is shaped by his living
environment. What exactly is living environment? Environment means
―all the conditions, circumstances, and influences surrounding and
affecting the development of an organism or group of organisms. It also
means that the complex of physical, chemical and biotic factors that act
upon a n organism or an ecological community and ultimately determine
its form and survival.
Environment, environmentalists, environmentalism etc., are the common
words used in our ordinary life in recent years. Environmentalists are
those who love and care for environment, who realize that any damage to
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Introduction to Environmental
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7 concern of environmentalists and fundamental environmentalists are
different. The former upholds and tries to popularize the need for
environme ntal education. But the latter embraces environment in its virgin
form and any intervention in the ecological balance of the environment
mars the very survival of living things. Therefore, fundamental
environmentalists are always treated as anti developmen talists. But the
works of such persons are always appreciated by the people at large.
The words Ecology and Economics stem from the same Greek root Oikos‘
which means habitation. Ecology is the study of the relationship or
interdependence between living or ganisms and their environment. Hence
in Greek root, Ecology deals with the household and nature‘, while
Economics deal with the ‗household of man‘. An ecological balance
exists in the society in which all the living things live harmoniously. But
the proble m is that man in his aspiration for better living has upset the
ecological balance thereby endangering nature as well as himself. Quite
often we find that there is a conflict between Economy‘ and Ecology‘.
Ecology studies harmony between nature and man, wh ereas Economics
spells out the disharmony between man and nature. The disharmony arises
as a result of the incompatibility of the basic ecological principle of
stability as a precondition for the sustainability of ecological system and
the economic princip les of business profitability.
Environmental economics attempts to study the inter relationship between
economic and environment. Economic as a subject cannot exist in
isolation, it cannot even be a mere study of how good and services are
produced, but at the same time it has to take into consideration the impacts
of the use of resources on the environment. The impact may be in the form
of externality, pollution, exhaustion, etc. Any study on the economic
content of production, distribution, development, e tc., cannot be
completed without touching upon the environmental aspects like
externality, pollution, damage, exhaustion, depletion etc. environmental
economics can therefore be defined as that part of economics which deals
with interrelationship between e nvironment and economic development
and studies the ways and means by which the former is not impaired nor
the letter impeded. Environmental economics teaches us how to promote
economic growth of nations with least environmental damage. When the
environmen tal goods get transferred into economic goods, the problems of
environmental damage crop up and therefore the need to interact with
economic principles.

One must begin by recognizing the threefold connection between the
environment,human society and its e conomy.
First, the environment provides the economy with raw materials which are
transformed into consumer products through the production process.
These raw materials include energy, which is itself a consumer product as
well as an intermediate that drive s this transformation.
Second, the environment provides services which are used directly by
consumers. These may be critical life -support services such as the oxygen munotes.in

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Environmental Economics
8 in the air that we breath or the water that we drink. They may be aesthetic
or recreationa l services that we may derive pleasure from, such as
rambling in the forest or boating on the river.
Finally, there is a less recognized but vital service that the environment
provides to the economy. It act as a receptacle or a sink for all the waste
products that are the result of the process of production and consumption.
The environment is not a passive sink, it act upon the waste products to
clean up the environment and recycle the waste into material that can be
used again.
These inter linkages are gi ven in the following diagram:

Fig: 1.1 interdependence of economics and environment.
All problems relating to the degradation of the environment relates
somehow to an interference that occurs in this relationship, that hinders
the delivery of these good and services that are provided directly or
indirectly by the environment to the economy. It may involve the slowing
down or a complete break down of the natural clean up process. It is this
interference or obstacle that lies at the root of all environmenta l problems.
Let us take a simple example, if a factory produces some good, it also
produces smoke. The amount of good it produces is decided by the
economy. This in turn decides the amount of smoke that will be belched
out and the damage to human health it will cause. If your neighbour plays
his music system too loudly, your mental peace is disturbed.
Thus all problems of environmental pollution or degradation occur as a by
product of our activities related to production or consumption. It is
therefore, imp ortant to understand the economic forces that derive
production and consumption such as the formation of market prices and
the optimal allocation of inputs.
1.8 SUMMARY
A dominant figure in the early advocacy was Allen Kneese who, along
with John Krutil la, was widely regarded as one of the fathers of munotes.in

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Introduction to Environmental
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9 environmental economics.Environmental economics is the study of
agent’s decisions that haveenvironmental consequences and how to affect
these decisions to achieveenvironmental quality goals.Environmental
economics will help you understand some important and controversial
issues – such as climate change policy, nuclear power, recycling policy,
and traffic congestion charging. This is an exciting field of economics to
study, and very much at the heart of many p ublic debates and
controversies.
Environmental economics is primarily concerned with the impact of
economic activities on environment and its implications for the individual
firm, industry and the economy as a whole. Economists have formulated
economy -environment models to explain the various economic activities
and their external effects.
1.9 EXERCISE QUESTIONS
1. What is Environmental Economics? Explain its nature.
2. Discuss the Scope of Environmental Economics.
3. How the study of Environmental Economics is Significant?
4. Discuss the various inter -linkages between economy and
environment.
5. Write a note on – Origin of Environmental Economics
1.10 SUGGESTED READINGS
1. Hanley N, J.F. Shogern and Ben White, Environmenta l Economics in
Theory and Practice,Macmillan, 1997.
2. Kolstad,C.D., Environmental Economics, Oxford University Press, New
Delhi, 1999.
3. Sankar,U. (Ed), Environmental Economics, Oxford University Press,
New Delhi, 2001.
4. Bhattacharya, R.N. (Ed), Enviro nmental Economics – An Indian
Perspective, Oxford University Press, New Delhi, 2001

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10 2
INTRODUCTION TO ENVIRONMENTAL
ECONOMICS –II
Unit Structure:
2.0 Overview
2.1 Unit Objectives
2.2. Environmental Kuznets Curve
2.3. Common Resources
2.4. Tragedy of Common
2.5. Externalities and Property Rights
2.6. How Do Property Rights Affect Externali ties and Market Failure?
2.7. Summary
2.8. Exercise Questions
2.9 Suggested Readings
2.0 UNIT OVERVIEW
This unit provides an explanation of Kuznets Curve with its causes and
criticism. The unit explains Common Resources; Tragedy of Common;
and externaliti es and Property rights. The unit then provides an overview
of how property rights affect externalities and market failure.
2.1 UNIT OBJECTIVE
 To explain the EnvironmentalKuznet Curve.
 To explain Common Resources and Tragedy of Common
 To understand external ities and property rights.
Unit Learning Outcomes
By the end of this unit, students should:
• have gained a knowledge of the Environmental Kuznet Curve.
• be familiar Common Resources and Tragedy of Common
• be familiar with externalities and property ri ghts.
2.2 ENVIRONMENTAL KUZNETS CURVE
The Environmental Kuznets curve relationship between environment and
development takes its inspirations from the income distribution theory
developed by Simon Kuznets in 1955. In his study, Kuznets found an
inverted U-shaped relationship between the indicators of income
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11 The income inequality increases along the path of economic development
in the early phase, declares in the later phase.
Gene Gros sman and Alan Krueger in their studies of the relationship
between the environment degradation and economic development found a
similar inverted U -shaped relationship. This inverted U -shaped
relationship between the environmental degradation and economic
development is known as Environmental Kuznets Curve (EKC). The EKC
hypothesis expresses the most likely relationship between the environment
and economic development. It states that the environmental degradation is
low when the level of economic development is low. The environmental
degradation increases with economic development in the early phase but it
comes down at the later stage of development. That is, in the initial stage
of development, environmental degradation increases but eventually
declines at certain threshold level of income.
Definition: The environmental Kuznets curve suggests that economic
development initially leads to a deterioration in the environment, but after
a certain level of economic growth, a society begins to improve its
relations hip with the environment and levels of environmental degradation
reduces.
From a very simplistic viewpoint, it can suggest that economic growth is
good for the environment.
However, critics argue there is no guarantee that economic growth will
lead to an i mproved environment – in fact, the opposite is often the case.
At the least, it requires a very targeted policy and attitudes to make sure
that economic growth is compatible with an improving environment.

Fig 2.1 Environmental Kuznet Curve
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12 2.2.1 Causes of Environmental Kuznets curve:
1. Empirical evidence of declining pollution levels with economic
growth. Studies found that higher economic growth in the US led to
increased use of cars, but at the same time – due to regulation, levels
of air pollution.

2. Spare income with growth. With higher rates of economic growth,
people have more discretionary income after paying for basic
necessities; therefore, they are more amenable to paying higher prices
in return for better environmental standards.

3. Focus on living standards as opposed to real GDP. Traditional
economic theory concentrates on increasing real GDP and rates of
economic growth. But there is a growing awareness the link between
economic growth and living standards can be weak. Focusing on living
standards can become politically popular.

4. Improved technology. The primary driving force behind long -term
economic growth is improved technology and higher productivity.
With higher productivity, we can see higher output, with less raw
materials used. For example, since the 1950s, the technology of car use
has significantly improved fuel efficiency. In the 1950s, many cars had
very low miles per gallon. In recent years, car manufacturers have
made strides in reducing fuel c onsumption and have started to develop
hybrid technology.

5. Solar and renewable energy. A good example of how improved
technology has reduced potential for environmental damage is the
progress in solar technology. In recent years, the cost of solar energy
has significantly fallen – raising the prospect of clean technology.

6. De-industrialisation. Initially, economic development leads to
shifting from farming to manufacturing. This leads to greater
environmental degradation. However, increased productivity an d
rising real incomes see a third shift from industrial to the service
sector. An economy like the UK has seen industrialisation shrink as a
share of the economy. The service sector usually has a lower
environmental impact than manufacturing.

7. Role of gove rnment regulation. Economic growth and development
usually see a growth in the size of government as a share of GDP. The
government are able to implement taxes and regulations in an attempt
to solve environmental externalities which harm health and living
standards.

8. Diminishing marginal utility of income. Rising income has a
diminishing marginal utility. The benefit from your first £10,000
annual income is very high. But, if income rises from £90,000 - munotes.in

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13 £100,000 the gain is very limited in comparison. Having a very high
salary is of little consolation if you live with environmental
degradation (e.g. congestion, pollution and ill health). Therefore a
rational person who is seeing rising incomes will begin to place greater
stress on improving other aspects of l iving standards.
2.2.2 Criticisms of Kuznets Environmental Curve:
1. Empirical evidence is mixed. There is no guarantee that economic
growth will see a decline in pollutants.

2. Pollution is not simply a function of income , but many factors. For
example, the ef fectiveness of government regulation, the development
of the economy, population levels.

3. Global pollution. Many developed economies have seen a reduction
in industry and growth in the service sector, but they are still importing
goods from developing coun tries. In that sense, they are exporting
environmental degradation. Pollution may reduce in the UK, US, but
countries who export to these countries are seeing higher levels of
environmental degradation. Oneexample is with regard to
deforestation. Higher -income countries tend to stopthe process of
deforestation, but at the same time, they still import meat and furniture
from countries who are creating farmland out of forests.

4. Growth leads to greater resource use. Some economists argue that
there is a degree of reduced environmental degradation post -
industrialisation. But, if the economy continues to expand, then
inevitably some resources will continue to be used in greater measure.
There is no guarantee that long -term levels of environmental
degradation will continue to fall.

5. Countries with the highest GDP have highest levels of CO2
emission. For example, US has CO2 emissions of 17.564 tonnes per
capita. Ethiopia has by comparison 0.075 tonnes per capita. China’s
CO2 emissions have increased from 1,500 mill ion tonnes in 1981 to
8,000 million tonnes in 2009.

6. The shape of the curve may be N -shaped instead of invented U -
Shaped if the level of environmental degradation after declining for
some time again starts increasing as nations incomes continue to
increase . Arrow argues that the inverted U -shaped relationship would
appear to be false, if pollution increases again at the end due to higher
levels of income and mass consumption.

7. Suri and Chapman urged that met reduction in pollution may not
be occurring. On a global scale because the wealthy nations have a
tendency of exporting the pollution intensive activities like,
manufacturing of clothing, furniture etc. to poorer countries. Thus, the
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14 compensated by the increase in pollution in developing countries. So,
the pollution level at the global scale may remain unchanged with
economic development.
2.2.3 Conclusion:
The link between levels of income and environmental degradation is quite
weak. It is possible economic growth will be compatible with an improved
environment, but it requires a very deliberate set of policies and
willingness to produce energy and goods in most environmentally friendly
way.Thus, it can be concluded that the relatio nship between the
environment and economic development is quite complex and
unpredictable. The environmental Kuznets curve has tried to explain the
possible relationship between the level of environmental degradation and
economic development. The hypothesi s populated that in the early phase
of development, environmental degradation increases. But as the level of
development reaches certain threshold the people become aware about the
environment and invest more in environmental protection. This leads to
decline in environmental degradation.
2.3 COMMON RESOURCES
Common resource means a good or service shared by a well -defined
community. The community controls the use of such resource by
individuals. However, enforcement is weak due to difficulties in
monitorin g. For example, water in a village pond, which is a common
property resource, is used by the villagers only. The village as a
community decides upon the manner and the purpose for which the pond
water can be used, which results in a set of norms, evolved o ver time, and
largely unwritten. In case of a breach of the norms, however, imposition of
penalty is poorly enforced due to poor monitoring, subjectivity in the
norms and ambiguities in property rights. The common property regime
for managing natural resou rces is frequently misunderstood. It is often
observed as a situation in which there is no management regime in place;
as a situation of open access, which is free for all. Accordingly, resource
degradation in the developing countries is incorrectly attrib uted to
'common property systems', whereas it actually originates in the
dissolution of local , level institutional arrangements. Therefore, there is a
need to properly understand the common property resources and its
management systems as these have direc t bearing on the sustainable
development of natural resources.
We can list a large number of CPRs, which can be brought under the
broad headings like land resources, forest resources, water resources, and
fishery resources. These resources are being degrad ed overtime due to
overuse or lack of proper management. We shall discuss briefly about
these common property resources.
2.3.1 Land Resources:
Common property land resource refers to lands identified with a specific
type of property rights. The common lan ds covered in the National Sample munotes.in

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15 Survey (NSS) enquiry are panchayat lands, government revenue lands,
village common lands, village thrashing lands, unclassified forest lands,
woodlands and wastelands, river banks, and lands belonging to other
households u sed as commons.
2.3.2 Forest Resources:
Another category of land for which common property rights may exist is
land under forests. Unclassified forests, with very low productivity, are
always open to use by local communities: Accordingly, both protected a nd
unclassified forests are treated as forming a part of common property
forest resources. It is, therefore, the subset of total forest area minus
reserve forests to which common property rights are assumed to exist.
2.3.3 Water Resources:
There are a vari ety of resources of water, which are in the public domain,
and a significant part of these are included in the category of commons.
Examples are flows of rivers, tanks and natural lakes, groundwater,
wetland and mangrove areas, and such other water bodies. Man -made
water resources such as dams and canals, tube wells, other wells, and
supply of all types of potable water also fall in the category of CPRs
depending upon their property rights. Unfortunately, even after many
debates about property rights (such as traditional rights, community rights,
and basic need human rights), water has not yet been declared as CPR in
India, though references are made in the water policy document indirectly.
By and large, water resources in India are in common property regime s
only. Irrigation canals are managed jointly by the government and
communities. Traditionally, tanks, village ponds, and lakes - all of which
are treated as CPRs -are sources of water for drinking, livestock rearing,
washing, fishing and bathing, and seve ral sanitary -related activities.
2.4 TRAGEDY OF COMMON
People have always a tendency to use (misuse) public property according
to their whims and fancies. As the public property is not owned by any
individual, no one can claim for an exclusive ownership. T he net result
being misuse of public properties. Perhaps this is the main reason for
garbage appearing in the public road, discharging effluents into the river,
public parks being misused, public buildings being disfigured etc.
Prof. Garrett Hardin examine d the reasons why public properties are either
being misutilised or over utilized by the people. The answer that he
identified has been published in the article titled “The Tragedy of
commons” (1968). He had studied the character of herdsmen in England.
Hardin anxiously watched out the peculiar behaviour of herdsmen that
they are always prepared to add additional cattle into the pasture land in
England. The logic prevailed that the farmer who grazed the most cattle
stood to benefit most from the commons. Bu t the tragedy of this kind of
action is that the land was overgrazed and destroyed. This came to be
known as “ Tragedy of Commons” . Though the tragedy of commons is an
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16 in most of the situation in which the resources are owned by the public.
There is a tendency to over exploit public resources resulting in total
destruction or non -availability of further resources’.
2.5 EX TERNALITIES AND PROPERTY RIGHTS
2.5.1 Externalities:
Extern alities occur in an economy when the production or consumption
of a specific good or service impacts a third party that is not directly
related to the production or consumption of that good or service.
Almost all externalities are considered to be technica l externalities.
Technical externalities have an impact on the consumption and
production opportunities of unrelated third parties, but the price of
consumption does not include the externalities. This exclusion creates a
gap between the gain or loss of pr ivate individuals and the
aggregate gain or loss of society as a whole.
The action of an individual or organization often results in positive
private gains but detracts from the overall economy. M any economists
consider technical externalities to be market deficiencies, and this is the
reason people advocate for government intervention to curb negative
externalities through taxation and regulation.
Externalities were once the responsibility of loca l governments and those
affected by them. So, for instance, municipalities were responsible for
paying for the effects of pollution from a factory in the area while the
residents were responsible for their healthcare costs as a result of the
pollution. Aft er the late 1990s, governments enacted legislation imposing
the cost of externalities on the producer. This legislation increased costs,
which many corporations passed on to the consumer, making their goods
and services more expensive.
2.5.2 Positive and N egative Externalities:
Most externalities are negative. Pollution is a well -known negative
externality. A corporation may decide to cut costs and increase profits by
implementing new operations that are more harmful to the environment.
The corporation real izes costs in the form of expanding operations but
also generates returns that are higher than the costs.
However, the externality also increases the aggregate cost to the economy
and society making it a negative externality. Externalities are negative
when the social costs outweigh the private costs.
Some externalities are positive. Positive externalities occur when there is
a positive gain on both the private level and social level. Research and
development (R&D) conducted by a company can be a positive
externality. R&D increases the private profits of a company but also has
the added benefit of increasing the general level of knowledge within a
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17 Similarly, the emphasis on education is al so a positive externality.
Investment in education leads to a smarter and more intelligent
workforce. Companies benefit from hiring employees who are educated
because they are knowledgeable. This benefits employers because a
better -educated workforce requi res less investment in employee training
and development costs.
2.5.3 Property rights:
The purpose of the property rights approach is to build on and merge with
the standard theory of production and exchange in order to obtain an
expanded scope of its vali dity. It argues that the purpose of trade and
production is to exchange bundles of rights to do things with goods that
are exchanged. Thus the value of the goods traded increases and the terms
of trade improve with increases in the degree of property right s in those
goods. It follows that the scope and content of property rights over
resources affects the way people behave in a world of scarcity.
Since the same resource cannot simultaneously be used to satisfy
competing demands, conflicts of interests have to be resolved. Thus the
structure of property rights in a society at some point in time becomes
crucial. There is evidence that the allocation of resources is constrained in
specific ways by prevailing property rights assignments. What are owned
are right s to use resources and not the resource itself. The strength with
which rights are owned can be defined by the extent to which an owner’s
decision about how a resource will be used determines its use.
Property rights are an instrument of society and they d erive their
significance from the fact that they help individuals form reasonable
expectations of their dealings with others. These expectations find
expression in a society’s laws, customs, and mores. Property rights specify
how people may be benefited an d harmed and therefore who must pay
whom to modify the actions taken by individuals. Thus property rights
have a close relationship with externalities. An externality occurs
whenever the activities of one economic agent influences others in ways
that are n ot taken into account by market transactions. Internalizing refers
to a process whereby these effects have to be considered by all the
individuals involved in the action. This could be done by a change in the
ownership of rights. The concept of property ri ghts can therefore help
internalize externalities. However, such a process involves costs that have
to be taken into account. Not only is it important to have a structure of
property rights, it is equally important to ensure that these rights are
enforced. This is where the legal system comes in. One of the purposes of
the legal system is to establish the clear delimitation of rights, on the basis
of which the transfer of rights can take place through the market. It should
be possible for one user to buy ou t the rights of the other users to obtain
exclusive usage. The use of a piece of land simultaneously for growing
wheat and as a parking lot would produce chaos. To avoid this situation it
would be important to create property rights to allow exclusive use of the
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18 The advantage of establishing exclusive rights to use a resource when that
use does not harm others is easily understood. However, the situation
changes when actions may harm others directly. Consider the example of a
doctor and a confectioner having shops next to each other. The
confectioner’s machine disturbs the doctor in her work. The doctor takes
the matter to court and the confectioner is made to stop using his machine.
This example brings out the reciprocal nature of the relationship tha t tends
to be ignored while using Pigou’s approach. The traditional (Pigouvian)
approach has tended to obscure the nature of the choice that has to be
made. The question is commonly thought of as one in which A inflicts
harm on B and the issue is what shou ld be done to restrain A. This is not
entirely correct, however. What we are dealing with is a problem of a
reciprocal nature: in the process of avoiding harm to B, we harm A. The
real question then is: should A be allowed to harm B or should B be
allowed to harm A? The problem is how to avoid more serious harm.
Another example is straying cattle destroying crops on neighbouring land.
If it is inevitable that some cattle will stray, then an increase in the supply
of meat can only be obtained at the expense of a decline in the supply of
crops. The nature of the choice is not very clear: do we prefer meat or do
we prefer crops? It is impossible to know the correct answer without
knowing the value of what is obtained and the corresponding opportunity
cost.
It has been argued that the failure of economists to arrive at correct
conclusions about the treatment of harmful effects cannot be ascribed to a
few slips in analysis. The failure stems from basic defects in the current
approach to problems of welfare economi cs. What we need is a change in
approach. Pigou’s analysis in terms of divergences between private and
social products concentrates attention on particular deficiencies in the
system and tends to nourish the belief that any measure that will remove
the def iciency is desirable. This diverts attention from those other changes
in the system that are inevitably associated with the corrective measure,
changes that may well produce more harm than the original deficiency.
Instead, it would be desirable to use an o pportunity -cost approach when
dealing with the question of economic policy and to compare the total
product yielded by alternative social arrangements. These views were
developed by Coase and form the basis of what is known as the Coase
Theorem.
Once the l egal rights of the parties have been established, it is possible to
negotiate and modify those arrangements. In the example of the doctor and
the confectioner described above, we can have two cases: (1) the property
right is given to the doctor and the con fectioner stops producing candies,
or (2) the property right is given to the confectioner and the doctor can
strike a bargain by which the confectioner waives his right.
There are costs associated with any market activity per se. Such costs are
termed tra nsactions costs and in some market transactions such costs can
be significant. In a world with zero transactions costs, private negotiations
or market transactions will always lead to an efficient outcome as long as
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19 who owns the right. The exact definition of legal rules has only
distributional consequences. In reality, however, transaction costs are not
zero. When there are costs associated with striking bargains, we have to
compare t hose costs with the potential allocation gains from striking a
bargain. Only in situations where those gains exceed the necessary
bargaining costs will Coase -type results hold.
When bargaining costs are high, externalities will distort the allocation of
resources and the assignment of property rights can have a major effect on
that allocation. If, for example, major industries are given the right to
spew noxious fumes into the atmosphere, an efficient allocation is unlikely
to emerge since the costs of brin ging together into an effective bargaining
unit all the individuals harmed by such fumes are probably quite high.
Nevertheless, development of the Coase Theorem and later research based
on it has had a significant impact on the way economists think of the
relationship between externalities, property rights, and the efficient
allocation of resources.
The concept of property rights can be extended to various fields. One
could think of the problem faced by a financially weak, independent
inventor when selling a valuable but easily imitated invention for which
no property rights exist. Most independent inventors cannot successfully
create an organization to take commercial advantage of their invention, so
they have to rely on another party. This involves a produ ction contract, a
licensing arrangement, or the outright sale of the invention. Thus the
inventor’s ability to make profits of capture rents depends on the market
value of the invention, property rights, and the information of the inventor.
When the invent or can rely on patents or other mechanism to protect her
intellectual property rights, then theory suggests that the inventor can
appropriate a substantial fraction of the value of the invention. But if
property rights are weak and non -existent, then the i nventor’s ability to
capture rents are limited. Also, reliance on laws concerning theft of ideas
does not work since buyers employ strategies to avoid legal challenges.
Finally, some forms of intellectual property rights —such as new product
concepts and ma nagement ideas —are inherently difficult to protect.
2.6 HOW DO PROPERTY RIGHTS AFFECT
EXTERNALITIES AND MARKET FAILURE?
An externality, in economics, is in one sense a side effect caused to an
outside party in a business deal. The externality may have a po sitive or a
negative effect on that party. Property rights are often at the heart of
externalities.
A legal system that protects private property rights is often the most
efficient at c orrectly distributing costs and benefits to all parties, as long
as there is a measurable economic impact to each of them.
If those rights are not clear, market failure can occur. Market failure, in
this case, means that a transaction can have consequences to third parties
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20 private property rights, there is no path to a solution that leads to an
efficient use of the resources.
2.6.1 Property Rights Are a Bargaining Chip:
An externality can occur whenever an economic activity, or planned
activity, imposes a cost or benefit on another party. It is called a positive
externality if the activity imposes a net benefit and a negative externality
if it imposes a net cost.
In many if not most ca ses, the outside party's power to seek redress for a
negative externality lies in property rights.
For example, say many of your neighbors decide to bike to work rather
than drive.
2.6.2 Good and Bad Effects:
Those bike -riding commuters create a net benef it by reducing the amount
of traffic you have to deal with. They also reduce the air pollution in your
immediate area and lower the demand, and therefore the price, of
gasoline. You may even experience a reduced chance of being injured in
an auto accident.
But suppose your neighbors ride their bicycles through your front yard
and damage your landscaping. This is a clear -cut case of externalities
negatively affecting your property rights.
The issue to be negotiated is the reassignment of those costs to the
producer of the external effect rather than to you.
On a more serious scale, pollution is a classic negative externality. If you
live next to a factory with a smokestack, you may experience net costs in
the form of health complications, lower property value , and a dirty house.
Your rights as a property owner allow you to seek a resolution to the
issue.
2.6.3 Using Property Rights to Transfer Costs and Benefits
The simplest solution to externalities is to convince the recipient of
external benefits or the pro ducer of external costs to pay fairly for them.
Just as in a buyer -seller dynamic, the two parties can negotiate the market
value of the external impact and come to an agreement. When they cannot
agree, the producers of the problem may be forced to stop th eir cost -
imposing activities until they come to terms.
2.6.4 A Market Failure
When property rights are not clearly defined or adequately protected,
market failure can occur. That is, no solution that meets the needs of all
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21 Traffic congestion might be an example of an externality without a
solution. Since no business owns the roads, there is no incentive to charge
higher rates during peak times or discounts during nonpeak hours. The
individual drivers on the roads have no di stinct property rights. The result
is an inefficient allocation of highway travel.
2.6.5 Pareto Optimality and Externalities
Among economists, discussions about externality often focus on the
concept of the Pareto optimal solution, or Pareto efficiency. Th is theory
states that it is sometimes impossible to arrive at a resolution that makes
someone better off without also making someone else worse off.
Pareto optimality represents an ideal that is probably impossible. That is,
that an exchange of goods or se rvices could occur in which every single
person who is directly or indirectly affected by it is perfectly satisfied.
2.7 SUMMARY
The environmental Kuznets curve suggests that economic development
initially leads to a deterioration in the environment, but after a certain
level of economic growth, a society begins to improve its relationship with
the environment and levels of environmental degradation reduces.
An externality can occur whenever an economic activity, or planned
activity, imposes a cost or bene fit on another party. It is called a positive
externality if the activity imposes a net benefit and a negative externality if
it imposes a net cost.
More generally, the stronger the set of property rights, the stronger the
incentive to work, save, and inve st, and the more effective the operation of
the economy. The more effectively an economy operates, the more growth
it will produce for any set of resources.
2.8 EXERCISE QUESTIONS
1. Explain the Environmental Kuznets Curve with diagramme.
2. What do you m ean by common resources? Explain it.
3. Discuss the concept of Tragedy of Common in the context of
environmental economics.
4. State and illustrate the Externalities and Property Rights in context of
Environmental Economics.
5. How do Property rights af fect Externalities and Market Failure?
6. Write a note on ‘Positive and Negative Externalities’

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22 2.9 SUGGESTED READING
1. Hanley N, J.F. Shogern and Ben White, Environmental Economics in
Theory and Practice,Macmillan, 1997.
2. Kolstad,C.D., Environment al Economics, Oxford University Press, New
Delhi, 1999.
3. Sankar,U. (Ed), Environmental Economics, Oxford University Press,
New Delhi, 2001.
4. Bhattacharya, R.N. (Ed), Environmental Economics – An Indian
Perspective, Oxford University Press, New Delhi, 2 001


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23 3
INTRODUCTION TO ENVIRONMENTAL
ECONOMICS -III
Unit Structure:
3.0 Overview
3.1 Unit Objectives
3.2. Coase Theorm
3.3 Rio Declaration
3.4. Rio Declaration and agenda 21 programme of action for sustainable
development
3.5. Summary
3.6.Exercise Questions
3.7 Suggested Reading
3.0 UNIT OVERVIEW
This unit provides an explanation of Coase Theorem and its criticism. The
unit explains Rio Declaration. The unit then provides explanation on Rio
Declaration and agenda 21 programme of action for sustainable
developme nt.
3.1 UNIT OBJECTIVE
• To explain the Coase Theorem and its criticism.
• To explain Rio Declaration
• To understand Rio Declaration and agenda 21 programme of action for
sustainable development
Unit Learning Outcomes
By the end of this unit, students should:
• have gained a knowledge of the Coase Theorm.
• be familiar Rio Declaration
• be familiar with Rio Declaration and Agenda 21 for sustainability.

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24 3.2 COASE THEOREM
Introduction: According to Coase, any effort to internalize environmental
externalities re quires an effective scheme for assigning property rights.
Coase also believed that by assigning property rights to at least one of the
parties involved (either polluter or the pollutee) there would be no effect
on the final outcome of the environmental pro blem. The Coase theorem
developed by economist Ronald Coase in 1960. The advantages of this
theory is that the pollution problem can be solved by an arbitrary
assignment of property rights. Optimal level of pollution can be attained
through voluntary negot iations of private parties (polluter and pollutee). If
the state is acting as a regulator, enforceable ownership rights have to be
assigned so that it can act as private enterprise.
Illustration: To illustrate the essence of this theory, let us follow the
example given below. The two familiar firms to be taken to explain this
theory are the paper mill and the fish hatchery. River flowing nearby these
firm are a common good. The fish hatchery believes that and as per the
legal rights, the river can be used f or its activities. The paper mill is not
permitted to discharge the effluents into this river. In the figure, this
situation is represented by the origin O, where the amount of waste
released into this river from the paper mill is zero.

Fig 3.1 Coase Theo rm
The figure explains that if the paper mill is not permitted to dispose of the
wastes, it has to find an alternative method of disposal of 200 units of
waste. But this system cannot sustain for a long period. When the waste
discharged by the firm is le ss than We (110 units). The Marginal Cost of
Cleaning (MCC) of the Mill is higher than the Marginal Damage Cost
(MDC) to the hatchery. As shown in the figure, for the 70th unit of waste
emitted into the river, the MDC to hatchery is Rs. 20. The MCC of mill is
Rs. 50. The Rs. 50 is for cleaning up of 130 units (200 -70=130) of wastes.
To discharge 70 units of wastes, the mill is prepared to pay Rs. 20 to
compensate for the damage caused to hatchery, because the alternative
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25 to the paper mill. Though both the parties, the paper mill and the fish
hatchery, enjoy some advantages, they can think of a better bargain. These
two firms will be in a position to engage in a mutually beneficial
transaction provided that it is at the point where the MCC>MDC. Further
the negotiation ends when the MCC=MDC. This is the condition for the
optimum level of pollution. In figure this is attained at We or 110 units of
waste emission.
Coase theorem goes beyo nd the mere attainment of optimally. It also
states that this optimal outcome is completely independent of the two
parties who have the rights to the river. To illustrate this, let us imagine
that the paper mill has exclusive legal rights to the use of the river. Under
this circumstance, the mill can dispose of the entire wastes to the river.
The figure shows that the paper mill can discharge a total of 200 units. But
for each units between 110 and 200 units of wastes discharged, the MDC
is greater than MCC . It means that the mill’s MCC for abating pollution is
lower than MDC which the mill needs to meet. This situation will call for
the two firms. The paper mill and the hatchery to engage in a mutually
beneficial transaction. When the waste is 140 units, th e control cost which
the mill needs to pay to the hatchery is Rs. 15 per unit, whereas the mill
itself needs to spend Rs. 45 to avoid the 1 unit of waste emission. Thus
when the emission level is at 140 units, the MDC is greater than MCC.
The hatchery will take initiative to offer any amount higher than Rs. 15 to
avoid higher levels of pollution emission to the river. Thus, the hatchery
moves on the MCC curve and finally, it settles at S where MDC=MCC.
Thus the optional level of pollution is again reached a t We or 110 units
where MDC=MCC.
The theory based on several assumptions:
a. Every firm has perfect information
b. Consumer and producers are price takers
c. Producers maximize the profit and consumers maximize the utility
d. There are no income or wea lth effects e. There are no transaction costs.
Critical evaluation:
The following major limitations of this theory are:
1. Wealth effect is assumed to be non -existent. But in reality we all of us
know that there are wealth effects which are subject to en vironmental
factors.
2. Complete set of property rights is necessary to obtain optimum
allocation of resources. Coase says that for achieving efficiency it does
not matter how these rights are distributed. The question who will
assign property rights to p ublic goods is still a hard nut to crack.
Arbitrary valuation cannot be considered as the relatively better
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26 3. The transaction costs will be much higher when the parties involved in
the negotiation process are many.
4. Coase theorem appears to be indifferent from the polluter pay principal
which states that it is the polluter who has to meet the environmental
damage cost. The extent of optimality in the polluter pay principle is
analysed in the Pigovian fee.
3.3 RIO DECLARATION
The 1992 Rio Decl aration on Environment and Development defines the
rights of the people to be involved in the development of their economies,
and the responsibilities of human beings to safeguard the common
environment. The declaration builds upon the basic ideas concerni ng the
attitudes of individuals and nations towards the environment and
development, first identified at the United Nations Conference on the
Human Environment (1972).
The Rio Declaration states that long term economic progress is only
ensured if it is lin ked with the protection of the environment. If this is to
be achieved, then nations must establish a new global partnership
involving governments, their people and the key sectors of society.
Together human society must assemble international agreements th at
protect the global environment with responsible development.
The primary objective of the Rio 'Earth Summit' was to produce a broad
agenda and a new blueprint for international action on environmental and
development issues that would help guide interna tional cooperation and
development policy in the twenty -first century.
Agenda 21 highlights the need to eradicate poverty. One of the major
problems facing poorer nations is their lack of resources and ability to live
sustainably. Developed nations have ta ken on the responsibilities
of assisting poorer nations to reduce their environmental impacts and
achieve sustainable development.
Earth Summit 1992 produced the Rio Declaration on Environment and
Development, the Statement of Forest Principles, and Agenda 21. The
Earth Summit also led to the establishment of the Convention on
Biological Diversity, and the United Nations Framework Convention on
Climate Change (UNFCCC).
3.4 RIO DECLARATION AND AGENDA 21
PROGRAMME OF ACTION FOR SUSTAINABLE
DEVELOPMENT
Agenda 21 sought to provide a comprehensive blueprint of action to
be taken globally, nationally and locally by organizations of the UN,
governments, and major groups. The Rio Declaration established 27
principles intended to guide sustainable development around the
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27 Rio Declaration was adopted and contained in part Principle 10
stating that: “Environmental issues are best handled with
participation of all concerned citizens, at the relevant lev el.
Principle 1
Human beings are at the centre of concerns for sustainable development.
They are entitled to a healthy and productive life in harmony with nature.
Principle 2
States have, in accordance with the Charter of the United Nations and the
princip les of international law, the sovereign right to exploit their own
resources pursuant to their own environmental and developmental
policies, and the responsibility to ensure that activities within their
jurisdiction or control do not cause damage to the en vironment of other
States or of areas beyond the limits of national jurisdiction.
Principle 3
The right to development must be fulfilled so as to equitably meet
developmental and environmental needs of present and future generations.
Principle 4
In order t o achieve sustainable development, environmental protection
shall constitute an integral part of the development process and cannot be
considered in isolation from it.
Principle 5
All States and all people shall cooperate in the essential task of eradicati ng
poverty as an indispensable requirement for sustainable development, in
order to decrease the disparities in standards of living and better meet the
needs of the majority of the people of the world.
Principle 6
The special situation and needs of develop ing countries, particularly the
least developed and those most environmentally vulnerable, shall be given
special priority. International actions in the field of environment and
development should also address the interests and needs of all countries.
Prin ciple 7
States shall cooperate in a spirit of global partnership to conserve, protect
and restore the health and integrity of the Earth's ecosystem. In view of the
different contributions to global environmental degradation, States have
common but differen tiated responsibilities. The developed countries
acknowledge the responsibility that they bear in the international pursuit
of sustainable development in view of the pressures their societies place
on the global environment and of the technologies and fina ncial resources
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28 Principle 8
To achieve sustainable development and a higher quality of life for all
people, States should reduce and eliminate unsustainable patterns of
production and consumption and promote appropriate demographic
policies.
Principle 9
States should cooperate to strengthen endogenous capacity -building for
sustainable development by improving scientific understanding through
exchanges of scientific and technological knowledge, and by enhancing
the development, adaptation, diff usion and transfer of technologies,
including new and innovative technologies.
Principle 10
Environmental issues are best handled with the participation of all
concerned citizens, at the relevant level. At the national level, each
individual shall have app ropriate access to information concerning the
environment that is held by public authorities, including information on
hazardous materials and activities in their communities, and the
opportunity to participate in decision -making processes. States shall
facilitate and encourage public awareness and participation by making
information widely available. Effective access to judicial and
administrative proceedings, including redress and remedy, shall be
provided.
Principle 11
States shall enact effective enviro nmental legislation. Environmental
standards, management objectives and priorities should reflect the
environmental and developmental context to which they apply. Standards
applied by some countries may be inappropriate and of unwarranted
economic and soci al cost to other countries, in particular developing
countries.
Principle 12
States should cooperate to promote a supportive and open international
economic system that would lead to economic growth and sustainable
development in all countries, to better a ddress the problems of
environmental degradation. Trade policy measures for environmental
purposes should not constitute a means of arbitrary or unjustifiable
discrimination or a disguised restriction on international trade. Unilateral
actions to deal with environmental challenges outside the jurisdiction of
the importing country should be avoided. Environmental measures
addressing transboundary or global environmental problems should, as far
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29 Principle 13
States shall develop national law regarding liability and compensation for
the victims of pollution and other environmental damage. States shall also
cooperate in an expeditious and more determined manner to develop
further international law regarding lia bility and compensation for adverse
effects of environmental damage caused by activities within their
jurisdiction or control to areas beyond their jurisdiction.
Principle 14
States should effectively cooperate to discourage or prevent the relocation
and t ransfer to other States of any activities and substances that cause
severe environmental degradation or are found to be harmful to human
health.
Principle 15
In order to protect the environment, the precautionary approach shall be
widely applied by States according to their capabilities. Where there are
threats of serious or irreversible damage, lack of full scientific certainty
shall not be used as a reason for postponing cost -effective measures to
prevent environmental degradation.
Principle 16
National a uthorities should endeavour to promote the internalization of
environmental costs and the use of economic instruments, taking into
account the approach that the polluter should, in principle, bear the cost of
pollution, with due regard to the public intere st and without distorting
international trade and investment.
Principle 17
Environmental impact assessment, as a national instrument, shall be
undertaken for proposed activities that are likely to have a significant
adverse impact on the environment and ar e subject to a decision of a
competent national authority.
Principle 18
States shall immediately notify other States of any natural disasters or
other emergencies that are likely to produce sudden harmful effects on the
environment of those States. Every e ffort shall be made by the
international community to help States so afflicted.
Principle 19
States shall provide prior and timely notification and relevant information
to potentially affected States on activities that may have a significant
adverse transb oundary environmental effect and shall consult with those
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30 Principle 20
Women have a vital role in environmental management and development.
Their full participation is therefore essential to achieve sustainable
development.
Principle 21
The creativity, ideals and courage of the youth of the world should be
mobilized to forge a global partnership in order to achieve sustainable
development and ensure a better future for all.
Principle 22
Indigenous people and their communities and other local communities
have a vital role in environmental management and development because
of their knowledge and traditional practices. States should recognize and
duly support their identity, culture and interests and enable their eff ective
participation in the achievement of sustainable development.
Principle 23
The environment and natural resources of people under oppression,
domination and occupation shall be protected.
Principle 24
Warfare is inherently destructive of sustainable d evelopment. States shall
therefore respect international law providing protection for the
environment in times of armed conflict and cooperate in its further
development, as necessary.
Principle 25
Peace, development and environmental protection are interd ependent and
indivisible.
Principle 26
States shall resolve all their environmental disputes peacefully and by
appropriate means in accordance with the Charter of the United Nations.
Principle 27
States and people shall cooperate in good faith and in a spi rit of
partnership in the fulfilment of the principles embodied in this Declaration
and in the further development of international law in the field of
sustainable development.
3.5 SUMMARY
The Coase Theorem is a legal and economic theory developed by
economist Ronald Coase regarding property rights, which states that
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31 and an efficient set of inputs and outputs, an optimal decision will be
selected.There are limitations to the Coase theo rem. If there are multiple
polluters, or more than one party affected by the pollution, the assignment
of property rights actually can determine the level of pollution. Take, for
example, a plant that expels waste into a river.
The Rio Declaration on Envir onment and Development (RD) is a
document that defines principles for the relationship of states to each other
and the relationship between states and their citizens in the field of
environment and development.
The Rio de Janeiro conference highlighted how different social, economic
and environmental factors are interdependent and evolve together, and
how success in one sector requires action in other sectors to be sustained
over time.In 1992 the Rio Declaration was adopted and contained in part
Principle 1 0 stating that: “Environmental issues are best handled with
participation of all concerned citizens, at the relevant level.Rio -Summit
produced conventions dealing with climate change, biodiversity, and
forestry and recommended a list of development practic es called Agenda
21. It gave the concept of sustainable development to be combined
economic growth with ecological responsibility.
3.6 EXERCISE QUESTIONS
1. State and illustrate Coase Theorm.
2. Explain assumptions and criticism of Coase Theorm.
3. Discuss Rio Declaration and its significance.
4. Explain Rio Declaration and agenda 21 programme of action for
sustainable development.
5. Write a note on Principles of Rio Declaration.
6. Write short note on sustainable Development.
3.7 SUGGESTED READING
1. Jeoren C.J.M. Bergh, Handbook of enviornmrntal and Resource
Economics, 2002.
2. Steven Hacket., Environmental and Natural Resources Economics -
Theory, Policy and the sustainable society, Oxford University Press,
New Delhi, 1999.
3. Sankar,U. (Ed), En vironmental Economics, Oxford University Press,
New Delhi, 2001.
4. Bhattacharya, R.N. (Ed), Environmental Economics – An Indian
Perspective, Oxford University Press,New Delhi, 2001
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32 Module II
4
THE DESIGN AND IMPLEMENTATION
OF ENVIRONMENTAL POLICY
Unit Structure:
4.0 Objectives
4.1 Introduction
4.2 Criteria for Evaluating Environmental Policies
4.3 Environmental Standards
4.4 Pigovian Taxes
4.5 Effluent Fees
4.6 Tradable Permits
4.7 Q uotas (Command and Control Instruments)
4.8 Choice between Taxes and Quotas
4.9 Environmental Policy: Regulation and Implementation
4.10 Summary
4.11 Questions
4.0 OBJECTIVES
 To study the Criteria for evaluating environmental policies
 To study various Tool s of Environmental Policy
 To study the concept of Environmental Standards and its types
 To study the relevance of Pigovian taxes
 To study the concept of effluent fees
 To understand the meaning of quotas in environmental policies
 To understand the concept of tradable permits
 To study the comparison between taxes and quotas
 To study various Environmental Policy: Regulation and
Implementation
4.1 INTRODUCTION
Generally, state pass laws and regulations to protect environment from
environmental degradation. I t also sets certain criteria for evaluating
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33 command and control regulation (standards, targets), environmental
pricing practices (taxes, fees, permits etc.). In this chapter we will learn
how environmental policies are designed and implemented by the
government.
4.2 CRITERIA FOR EVALUATING ENVIRONMENTAL
POLICIES
There are many environmental policies in practice all over the world. Each
policy has its own different characteristics, advantag es and disadvantages.
Each policy has certain expectations about the behavior of the
administrators and the polluters. These policies however succeed in some
aspects and failed in other aspects. Following criteria should be considered
while framing an effe ctive environmental policy.
1. Efficiency: Administration in implementing various policies is said to
be efficient when it gives maximum benefits to the society or when it adds
into the well -being of the society compare to the social cost. In case of
envir onmental policies related to pollution control, it implies to maintain a
balance between abatement costs and damages. It brings us to the
equilibrium point where marginal abatement costs and marginal damages
are equal.
Environmental policies can be Central ized and Decentralized. In a
centralized policy a central agency or the regulatory agency is in charge to
attain efficiency. It takes such steps to move to the point where marginal
abatement costs equals the marginal damages. It is possible only when the
regulatory agency is having full knowledge of the marginal abatement
costs and marginal damages. In a decentralized policy approach, the
interactions of many individual decision makers reveal the information
about the marginal abatement costs and marginal d amages. The
assessment of these individual decision makers adjust to the situation
towards the point where marginal abatement costs equals the marginal
damages.
2. Cost effectiveness: Cost effectiveness criterion of environmental policy
implies that the co st incurred to achieve environmental improvement
should bring about a greater amount of environmental improvement at the
least possible cost. In simple words the costs incurred for environmental
improvement should be less than the benefits enjoyed by the s ociety due to
environmental improvement.
The resources employed to environmental quality improvement must be
used in such a manner so that it will have a huge impact. It is especially
important in LDCs or Developing Countries where resources are limited
and therefore these countries cannot afford to implement the policies
which are not cost effective.
3. Fairness: Fairness criterion for evaluating environmental policies is
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34 benef its among the members of the society. It is explained with the help of
following example.
Suppose there are several alternative air -pollution control policies
available to the government for a particular region. The implementation of
one such policy is dep end upon the evaluation of cost and benefits of these
alternatives.
Distribution of Net
benefits
Air
pollution
control
program Total
cost Total
benefits Net
benefits Region X Region Y
A 50 100 50 25 25
B 50 100 50 30 20
C 50 140 90 20 70
D 50 140 90 40 50

The above table shows the four alternative air pollution control programs
that can be adopted by the government i.e. A, B, C, and D. there are two
regions X and Y where region A represents lower income group people
and region Y represents high income group people. It is seen from the
above table that net benefits of Program A and B are same. But the
distribution of net benefit in region X is more than region Y i.e.
distribution in low income region is more. So we may prefer Program B
which justi fies the principle of equity or fairness. In case of Program B
and C again we may prefer B because the distribution of net benefits is
more towards region Y representing high income group and therefore it is
unequal or unfair. In case of Program B and D, w e can see that net
benefits are more in both the regions X and Y as compare to program B.
So we prefer D to B since region X is better of compare to the benefits it is
getting if program B is adopted.
4. Incentives for technological improvements: The deci sion of the private
parties, consumers actually determine the extent of environmental impact.
If the incentives are given to these parties then it will reduce the
environmental damage extensively. So whether the policy is providing
incentive to adopt techn ological improvements to reduce environmental
impact is one of the important criteria. It is inevitable to invent and
innovate new technology which helps to reduce the environmental impact
in the long run. Technological improvements or innovations through R &
D programs shifts the marginal abatement cost function downward.
The invention and innovation of new technology is a long term and
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35 development in the first place. Then the issue s of copyright, patent and
related infrastructure arise. Since the huge amount of monetary investment
and time is required, the public sector has to take initiative to develop R &
D in this area. Incentive to adopt new technology will give boost to the R
& D process of new technology.
5. Enforceability: Mere making a law to restrict or regulate something is
not enough. Policy makers have to take regulatory measures to enforce it.
In case of many stringent laws people do not accept or obey them
voluntarily. So enforceability of law is inevitable. Therefore enforceability
is an important criteria for effective environmental policy. There are two
main steps in enforceability of a policy
i) Monitoring: In monitoring, the performance of the polluters is measured
in accordance with the relevant laws. The main objective of monitoring is
to make polluters aware that they are abide by the law. Monitoring of
pollution behavior is a complicated procedure. Polluters try to evade this
monitoring by adopting many ways. Te chnology can help to ease the
process of monitoring.
ii) Sanctioning: In simple words sanctioning means penalties or fine
imposed for violation of law. When monitoring process noticed that a
polluter is violating a prescribed law, the policy makers refer h is case to
the court of law for levy of penalty or law. It may cause a burden on the
judiciary system which is often costly and time consuming.
6. Moral consideration: Ethical consideration or moral consideration is
another criteria for evaluating environm ental policies. Different people
have different kind of opinion to look at a policy. But a person’s ethical
approach or moral consideration helps to decide right or wrong choices for
the various environmental policies. Welfare of majority should be given
the priority. For e.g., if industrially developed countries are responsible for
more environmental pollution is a fact then they should bear a major
burden in rectifying the environmental degradation situation is a general
opinion.
In this way, these six t ypes of criteria are useful in evaluating
environmental policies in different circumstances.
4.3 ENVIRONMENTAL STANDARDS
Environmental standards are direct regulation type of Command -and-
Control Technique. It aimed at avoiding adverse health effects that may
cause due to exposure to high pollution levels, protecting environmental
quality or attaining sustainable development. The environmental standards
are based upon guidelines such as maximum permissible concentration
which guarantees protection of human health and environmental quality.
Environmental Standards are framed in the form of policy instruments
which belong to the group of physical instruments for environmental
policy. It includes environment studies, environmental planning,
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36 environmental accounting techniques. There are three types of
environmental standards:
1. Ambient Standards
2. Emission Standards
3. Technology Standards
1. Ambient Standards:
Ambient standards set maximum allowable lev els of a pollutant in the
ambient environment. It can offer a simple method of establishing
priorities on the basis of concentration limits. Ambient standards are set up
on the basis of desired environmental quality objectives and the cost that
society is willing to accept to meet those objectives. Ambient standards
can be set at different levels for different locations. Ambient standard for a
pollutant considers the health effects of different levels of exposure and
also to protect natural ecosystems. For e.g. an ambient standard for
dissolved oxygen in a particular water body may be set as 3 parts per
million. This means that it is lowest allowable limit set of this pollutant in
the water body. To ensure this, we must control the operation of the
sources o f this pollutant by adopting several measures.
2. Emissions Standards
Emissions standards set maximum allowable amounts of a pollutant
discharge by a plant or other source. In other words, emission standards
are the levels applied directly to the quantit y of emission coming from the
pollutants. A wide variety of bases are applied while setting an emission
standards. For e.g.
 Emission rate (k.g. per hour)
 Emission concentration (part per million oxygen in water bodies)
 Percentage removal of pollutant
Emiss ions standards can be established by estimating the discharges that
are compatible with ensuring that receiving areas around the plant meet
the ambient standards defined for that particular pollutant. It requires
considerable information on both the source s of pollution and the ambient
environment and it varies from area to area. Emission standards are the
types of performance standards because it considers the end result which
polluter must achieve.
3. Technology Standards
There are some standards which a ctually does not specify any limit or the
end result but it regulates the adoption of a specific technology, technique
or practice by the polluters. For e.g. technology use in cars, electric
equipments etc. Authorities set certain technology standards whic h are
supposed to be followed by the potential polluters.

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37 4.4 PIGOVIAN TAXES
The British economist Arthur C. Pigou developed the concept of
externality in early 1900. He advocated that Pigouvian tax is a tax
imposed on those economic activities which gen erate negative
externalities, which are borne by the parties not related to it. The market
becomes inefficient since the costs which arises from negative
externalities are not reflected in the final cost of a product or service. The
main objective of Pigou vian tax to remove market inefficiencies by
increasing the marginal private cost by the amount generated by the
negative externality. In that case the final cost i.e. original cost plus tax
will reflect the full social cost of the economic activity. So the main
purpose of Pigouvian tax is to discourage those activities which imposes a
cost of production on to the unrelated persons in the society such as
environmental pollution. This externality or external damage need to be
corrected.
Pigouvian tax is impos ed by the government on any activity which creates
socially harmful externality. It is intended to tax the producer of the
products or services who are responsible to create adverse side effects for
society. And the amount of this tax is generally equivale nt to the harm it
causes to the society in the form of negative externality.
Pigouvian taxes are prevalent in the society in the form of tax on carbon
emission, use of plastic bags etc. which creates negative externality. The
implemented taxes are a measu re to redistribute those costs back to the
producer and/or user that generate the negative externality.
4.4.1 Working of Pigouvian tax
A negative externality attained market equilibrium under free market
economy when the social marginal benefit (SMB) is e qual to the personal
marginal cost (PMC) which should be lower than the social marginal cost
due to additional costs created by the negative economic activities. It
creates the problem of market inefficiency or market failure. When
Pigouvian taxes are imp osed, the supply of negative economic activities
will decrease. This in turn will decrease the quantity demanded of these
products due to increase in the price. In this way market equilibrium will
become socially efficient when social marginal cost will be come equal to
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38

Fig -4.1
In the above diagram, in the absence of Pigouvian taxes a negative
externality attains market equilibrium under free market conditions where
demand curve D=PMB=SMB interse ct supply curve S=PMC 1 at
equilibrium point E 1. At this point price is OP 1 and quantity demanded is
OQ 1. When Pigouvian tax is imposed equal to the amount of costs
associated with the negative externality i.e. P 0P2, prices will increase to
OP 2 which in tur n will decrease the demand from OQ 1 to OQ 2. A new
equilibrium will be attained at E 2 where a new supply curve intersects the
demand curve. In this way, the market equilibrium will become socially
efficient because SMC=PMC 2.
4.4.2 Advantages of Pigouvian t axes:
1. Promotes market efficiency - it promotes market efficiency by
imposing additional taxes to encounter negative externalities.

2. Discourages harmful activities - it discourages production and
consumption of harmful activities that lead to negative externa lity
because they are heavily taxed after imposition of Pigouvian taxes.

3. Increases revenue of the government - it helps to generate additional
revenue to the government. This additional revenue government can
use to subsidized and finance various programs and policies to ruled
out the effects of negative externalities.
4.4.3 Disadvantages of Pigouvian taxes:
1. Difficult to measure - Pigouvian taxes are equal to the cost generated
by negative externalities. The exact amount of which is difficult to
measure in r eal world.
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39 2. Political interference - Pigouvian taxes are generally imposed on the
products which are harmful to the society at large such as tobacco,
liquor etc. The producers of these products are the main sources of
funds to the political parties. Since t hese parties favour these lobbyists
it becomes difficult for the government to impose additional taxes.
3. Regressive taxes - Sometimes these taxes are regressive in nature
when they are impose more burdensome to the lower income groups
than higher income gr oups.
4.5 EFFLUENT FEES
As a country’s economy develops rapidly with rapidly expanding
industrial economy, the demand for the use of water increases. Discharge
of effluents or industrial waste by these growing industries into the water
bodies is the main c ause of water pollution. Water being a natural resource
is scarce if not used effectively. Water pollution adds to this problem of
scarcity furthermore. So effective water management is required which
takes care of not only the quantity but also the qualit y of available water.
To justify the principle of polluter pays, effluent charges or fees are an
instrument of pollution control, imposing a financial or economic costs on
the polluter or producer who discharges effluents or wastes into the water
bodies c ausing water pollution. These charges or fees are also called as
pollution charges. The main objective of these fees is to manipulate the
economic behavior of the polluters. They can reduce the burden of these
fees by
 By ceasing the production
 By bringing change in the technology of their production units which
causes less pollution.
The amount collected by these effluent fees can be used by the
government to improve the quality of water. The charges would be limited
in total amount to a sum (and that sum would be earmarked in advance)
sufficient to build and maintain those treatment facilities which in each
particular receiving water body are necessary to achieve the quality of
water inherent in the legislatively established classification for that
particu lar water body.
Two different types of incentives would be given to the producers. These
units can scrutinize their waste disposal program carefully and make any
technological change which would reduce that charge by an amount
greater than the cost of the change. Secondly in the long run, there will be
a locational incentive. The units which need any quality water and the
units whose discharge of effluent is large will tend to locate nearby to
those stream basins with low water quality standards. Whereas fo r the
units which require high quality water or whose effluent discharge
quantity is small will be located to stream basins having a high water
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40 To conclude, following elements should be considered for a desirable
effluent fees:
 Effluent f ees should justify and reflect the environmental cost of water
pollution caused by effluents
 Effluent fees should bear some relation to Marginal abatement cost
borne by the producer so that the producer will be motivated to reduce
pollution

 Enough revenue should be generated for the maintenance and
treatment of water bodies

 Enough economic incentive in the form of offsetting of pollution
charges to be given to the producer who releases clean effluent into the
water bodies.
4.6 TRADABLE PERMITS
Tradable perm its aim to reduce pollution emissions. There are two ways to
issue these permits;
i) To auction it to the highest bidder; or
ii) To give it to the existing polluters in proportion to their baseline
emissions.
The permit owners then free to buy or sell to anybody i.e. to other
polluters who wants to participate in this market.
The tradable pollution permits are also called as cap and trade scheme.
This system offers flexibility to the polluters to attain the environmental
goal. It offers a legal right to the compan ies to pollute or to emit a certain
amount during a fixed time span. A firm who pollutes less can sell its
leftover permit to pollute to another firm whose emission is more. Selling
of its right to pollute to another firm provides an incentive to develop
innovative solutions.
The basic purpose of the tradable permit is to raise revenue by selling the
permits and to reduce pollution over a period of time. If a firm fails to
abide by the permissible limit then it has to buy this from other firms or
from the government. The price of this permit in the market is therefore
determine by the demand for and supply of these permits. In the long run
the government can reduce the size of tradable permits and by selling it at
a higher rate can induce the firms to innov ate or adopt the measures which
reduces the pollution or emission and thereby to reduce the cost of this
pollution. The overall impact will be of reducing of the pollution by the
firms.
When a firm creates or emits carbon during its production, then it cre ates
negative externality. In this case social marginal cost of production is
more than the private marginal cost. Tradable permits is a method to try
and reduce output to a more socially desirable level. The price of the
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41

Problems of tradable pollution permits:
There are certain problems of pollution permits listed below:
i) It is difficult to determine the quantity of tradable permits. The
government can be give more or less quantity of permits depend ing
upon their policies.

ii) It is difficult to measure the level of the pollution by the firms. There
is a possibility that the firms can hide the true level or shift their
production base to some other countries to avoid the surplus cost of
the permit. In a globalized economy, the multinational companies
often adopt this method to reduce cost.

iii) The administrating cost are likely to incur which cannot be ignored
while implementing the scheme.

iv) In case of global pollution permits, countries who emits more than
their permissible limit are required to buy it from other countries
with excess permit limit. More often it happens with the industrially
advanced rich developed countries who buy the permit from the less
developed countries. So the aim to reduce pollutio n is achieved if
such tactics are adopted.

v) There are some schemes such as offsetting schemes. In case of
carbon emission beyond permissible limit if a firm agrees to plant
trees to offset or compensate the pollution level, then such a permit
is to be give n to the firm. But once these firms get permit whether
they really planted the trees or not is the questionable in many cases.

vi) Many a times political interference defeat the aim of the tradable
permits and offers more quantity of permits to the firms.
4.7 QUOTAS (COMMAND AND CONTROL
INSTRUMENTS)
Quotas or Command and control instruments prescribes certain rules and
standards to comply with by using sanctions. This instrument assign a
specific amount of emission to the polluters. So the polluters are allowe d a
specific amount of emission which helps to reduce pollution. For this at
times they have to install specific type of equipment to reduce emission.
Kyoto Protocol sets a binding targets for 39 industrially advanced
countries and the European Union to re duce Green House gases (GHGs)
emission.
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Environmental Economics
42 In simple words quota means setting up of a limit or permission for a
certain amount of a targeted thing. It is often used in Environmental
legislation where policy makers intends to impose r estrictions to ensure
environmental sustainability. Based on a specific formula, these quotas /
permits sanctioned to each individual or firm participant. These permits
can be distributed by using several options
i) They can be given to the current users / po lluter firms
ii) Buying and selling in the market freely determined by the forces of
demand and supply
iii) Auctioning off them so that it is to be given to the highest bidder.
In each of these cases the permits are transferable in nature.
4.8 CHOICE BETWEEN TAXES AND QUOTAS
Taxes and Quotas both have their pros and cons:
1. Taxes are the direct payment in monetary terms made by the firms to
government for emission of pollutants. Whereas Quotas are the
quantitative limits imposed on the emission of pollutants. In case of
taxes since there is a direct payment in proportion to the emission, the
pinching is more. So the polluters try to optimize the cost of tax
payment by reducing the emission. In this way taxes are effective than
the quotas.

2. Measurement of taxes in propo rtion to the emission is difficult. They
are generally measured as equal to the cost of negative externality. To
measure taxes are therefore difficult in real world. As against this
quotas are easy to determine based on a specific formula in real world.

3. Taxes have a direct positive impact on reduction of pollution when due
to its heavy payment polluters try to reduce the emission. In case of
quotas and permits since they are transferable in nature it does not
have any direct impact on reducing the emission of pollutants.
To conclude, imposition of only tax or only quotas is not effective. Many
a times hybrid policies of both these instruments in required. The choice
between taxes and quotas is to be determined on the basis of negative
externalities and dist ribution of cost. The success or the failure of these
instruments are mainly depend on the policy implementation and
objectives to a large extent.
4.9 ENVIRONMENTAL POLICY: REGULATION AND
IMPLEMENTATION
Environmental damage due to global warming, ozone lay er depletion,
disposal of toxic chemical and nuclear waste at vulnerable places, loss of
forests and degradation of soil will adversely affect the survival of present
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43 stringent environmental control mechanisms in the form of policies and
laws.


Environmental policy implementation in India:
A) Constitutional provisions:
The provision for the rights and responsibilities of the citizens of India for
environment protection have been made in the Cons titution of India. Due
recognition is given in the Constitution to the forest and wildlife and the
tribal depend on the forest in the Constitution. Directive Principles to the
States are given in the Part IV of it, wherein liability imposed on the States
to protect the forest and wild life of the country. Part IV A of the
Constitution mentioned fundamental duties of the citizens to protect and
improve natural environment including forests, lakes, rivers and wild life.
B) Major legislations for environmental pr otection:
1. Environment (Protection) Act, 1986:
The Act was enacted in 1986. The main objective of the act is to provide
for the protection and improvement of the environment. The Central
Government empowered under this act to make provision to protect a nd
improve environment quality, control and reduce pollution from all
sources. Some important provision of the act are as follows:
• Rules are laid down for setting standards of emission or discharge of
environmental pollutants
• Rules for Hazardous Waste (Man aging and Handling), 1989 to control
generation, collection, treatment, import, storage, and handling of
hazardous waste.
• Rules for the Manufacture, Use, Import, Export and Storage of
hazardous Micro -organisms / Genetically Engineered Organisms /
cells wer e introduces in 1989. The objective is to protect the
environment, nature and health in connection with the application of
gene technology.
2. Water (Prevention and Control of Pollution) Act, 1974
The Act regulates quality of water under the Ministry of En vironment,
Forest and Climate change (MoEFCC), through State Pollution Control
Boards (SPCBs) and Central Pollution Control Board (CPCB). It
established water quality control stations all over the country at different
places. The act not only provides for the prevention and control of water
pollution but also takes care of maintaining or restoring of wholesome
water in the country.
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44 Though this act was enacted in 1981, it was amended in 1987. It provides
prevention, control and abatement of air pollution in India. It prescribed
various functions for the Central Pollution Control Board and State
Pollution Control Board as follows:
• To advise the Central government in matters related to the prevention,
contr ol of air pollution
• To execute a plan for a nation -wide programme for the prevention and
control of air pollution
• CPCB to provide assistance and guidance to the SPCBs.
• To carry out investigate and research related activities to prevent and
control of air p ollution
• Collection, compilation and publication of data related to air pollution
• Prescribe standards for the air quality
4. Forest Conservation Act, 1980
This act was enacted to protect and conserve forestland. The prior
approval of the Central governmen t is required if any forestland is
intended to be used for any other purpose or diverted for any non -forestry
purpose. Such approval is granted only on the condition that compensatory
plantation/afforestation are raised equivalent or double the area of for est
land used for other purposes.
5. Wildlife (Protection) Act, 1972
This act provides protection to the wildlife such as wild animals, birds and
plants to maintain ecological and environmental balance in the country.
The act provides for the setting up o f protected areas such as national
parks, zoos, wildlife sanctuaries etc.
6. National Environmental Tribunal Act, 1995
This Act was especially passed to award compensation for damages to
persons, property, and the environment arising from any activity inv olving
hazardous substances. Following are the three major objectives of the
Green Tribunal Act:
• Speedy disposal of the cases and the previously pending cases relating
to environment protection and conservation of forests and other natural
resources by the Tribunal.
• Enforcement of all the legal rights relating to the environment
• Providing compensation and relief to the affected people for the
damage of property.
7. National Environment Appellate Authority Act, 1997
The act was passed to facilitate public h earing into the environment
impact assessment to ensure greater transparency. It hears appeals related
to cases of areas where restrictions are imposed on the operations,
production processes of the industries.
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45 This act deals with the multi -disciplinary issues related to the environment
such as protection and conservation of forests and other natural resources.
It is a fast track court for the speedy or expeditious disposal of cases. It not
bound by the procedures laid down by Code of Civil Procedure, 1908 but
guided by the principle of natural justice. New Delhi is the Principal Place
of Sitting of the Tribunal and Bhopal, Pune, Kolkata and Chennai shall be
the other 4 place of sitting of the Tribunal.
4.10 SUMMA RY
1. There are many environmental policies in practice all over the world.
Each policy has its own different characteristics, advantages and
disadvantages.
2. Environmental standards are direct regulation type of Command -and-
Control Technique. It aimed at avoiding adverse health effects that may
cause due to exposure to high pollution levels, protecting
environmental quality or attaining sustainable development.
3. Pigouvian tax is a tax imposed on those economic activities which
generate negative external ities, which are borne by the parties not
related to it. The main objective of Pigouvian tax to remove market
inefficiencies by increasing the marginal private cost by the amount
generated by the negative externality.
4. Discharge of effluents or industr ial waste by the growing industries
into the water bodies is the main cause of water pollution. Effective
water management is required which takes care of not only the quantity
but also the quality of available water. To justify the principle of
polluter p ays, effluent charges or fees are an instrument of pollution
control, imposing a financial or economic costs on the polluter or
producer who discharges effluents or wastes into the water bodies
causing water pollution. These charges or fees are also called as
pollution charges.
5. The tradable pollution permits are also called as cap and trade scheme.
This system offers flexibility to the polluters to attain the environmental
goal. It offers a legal right to the companies to pollute or to emit a
certain am ount during a fixed time span.
6. Quotas or Command and control instruments prescribes certain rules
and standards to comply with by using sanctions. This instrument
assign a specific amount of emission to the polluters. So the polluters
are allowed a spec ific amount of emission which helps to reduce
pollution.
7. Imposition of only tax or only quotas is not effective. Many a times
hybrid policies of both these instruments in required. The choice
between taxes and quotas is to be determined on the basis of negative
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46 8. Environmental damage due to global warming, ozone layer depletion,
disposal of toxic chemical and nuclear waste at vulnerable places, loss
of forests and degradation of soil will adversely affect the surv ival of
present and future generations. May countries have therefore
implemented stringent environmental control mechanisms in the form
of policies and laws.
4.11 QUESTIONS
1. Briefly explain the criteria for evaluating environmental policies.
2. Discuss the concept and types of environmental standards.
3. Critically analyze the concept of Pigouvian taxes.
4. Write a note on Effluent charges.
5. Explain in detail the concept of Tradable permit.
6. Explain th e meaning of quotas in environmental policy.
7. Differentiate between taxes and quotas.
8. Discuss briefly environmental policies implementation in India.


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47 Module III
5
MEASURING BENEFITS OF
ENVIRONMENTAL IMPROVEMENTS
Unit Structure:
5.0 Objectives
5.1 Introduction
5.2 Economic Value of Environment
5.3 Measurement Methods of Environmental Value
5.4 Contingent Valuation Method
5.5 The Revealed Preference Meth od
5.6 Hedonic Price Method
5.7 Summary
5.8 Questions
5.0 OBJECTIVES
 To study the concept of Economic value of Environment
 To understand the meaning of Use and Non -use values of
environmental goods and services
 To study the Measurement methods of environm ental value such as
Market based and Non -market based methods
 To understand Contingent Valuation Method
 To study Travel Cost Method
 To study Hedonic Price Method
5.1 INTRODUCTION
As a country progresses and economic development takes place, it leads to
the adverse impact on the environment. For the survival of all the living
organisms it is essential to create a balance between the economic growth
and environmental pollution. The government policies to protect and
preserve the environment brings about th e economic costs. To assess and
implement any such environmental policy requires economic valuation of
these likely environmental damages. In this unit, we will study the
methods of measurement of this economic valuation of environmental
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48 5.2 ECONO MIC VALUE OF ENVIRONMENT
Traditionally, environmental valuation has been considered in the context
of non -market valuation. The objective of this valuation is to obtain a
measurement of the benefit to the welfare of individuals and the society or
cost to i ncur due to environmental degradation by the individuals and the
society in monetary terms. The ultimate goal is not just to measure the
benefit or cost in money terms but help the policy makers in their policy
initiatives regarding allocation of resources , imposition of taxes, various
compensation schemes such as subsidies.
To measure the benefits and costs in monetary terms environmental
valuation therefore considers the use of environmental goods, improving
the conditions of environmental goods and damag e, if any, and remedial
measures to correct environmental damage. For e.g. national parks, they
are not just the places of tourism but the benefits goes beyond that. They
provide natural amenities and recreation facilities.
Economists have developed tool s to measure environmental values. For
this it estimates individual’s willingness to pay to benefit from
environmental goods. The costs due to environmental damage are
measured by the loss suffered by the individuals who benefited from the
damaged good and deciding the appropriate compensation for losing the
benefit (willingness to accept).
5.2.1 The Total Economic Value (TEV) Framework:
The total economic value (TEV) framework assumed that individuals can
hold multiple values for ecosystems. It also consid ers that a marginal
change in the ecosystem services can give rise to changes in multiple
values that can be held by the same individual. The TEV framework
simply implies that all values that an individual holds for a change should
be counted.
In simple te rms, Total Economic Value (TEV) combines all the different
values, which are grouped according to the service provided by the
environmental good. It distinguishes between use value and non -use value.
The use values are based on the actual use of the resour ce. The non -use
values are not related to its present use. The use value includes the direct
use value i.e. the value derived from the direct use and exploitation of the
environmental good. Non -use values are composed of the existence value
i.e. the value that individuals give to environmental goods for their mere
existence and the bequest value i.e. the value estimated by individuals
when considering the use of goods in the future.
Within the TEV framework an individual can consider both use and
nonuse val ues for the services of an ecosystem. For e.g. consider an oil
spill on a popular coastal beach. This can result in the forgone recreational
trips to the beach. This is a lost use value. In addition to this loss it could
also damage the ecosystem in ways t hat the beach users would never
observe. It might kill marine life that live off the beach. The loss by those
who do not visit the beach would be a loss of nonuse value. So the TEV munotes.in

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49 framework investigates the potential loss in use and in nonuse values of
beach users and non -users of the beach.
5.2.2 Use Values: are generally grouped according to whether they are
direct or indirect. The direct use value refers to both consumptive and
nonconsumptive uses. It involves some form of direct physical interaction
with the resources and services of the eco -system. Examples of
Consumptive uses are harvesting fish and wild resources. Examples of
nonconsumptive direct uses are use of water for transportation and
recreational activities such as swimming can diminish the quality of
aquatic ecosystems through pollution and other external effects.
The livelihoods of people staying in areas nearby aquatic ecosystems may
be affected due to certain ecological functions for e.g. storm or flood
protection, water purification, hab itat functions. The values derived from
these services are considered as indirect. They are derived from the
support and protection of activities that have directly measurable values
e.g., property and land values, drinking supplies, commercial fishing.
Activities such as reading a book or magazine article about ecosystems, or
watching a nature program, are also considered as indirect use values.
5.2.3 Nonuse Values: refers to all values people hold that are not
associated with the use of an ecosystem good or service. Nonuse values
need not arise from a direct service provided by an ecosystem. If people
may benefit from the knowledge that an ecosystem simply exists
unfettered by human activity (e.g., Crater Lake) is considered as a non -use
value. Other examp les of nonuse values are bequest and cultural or
heritage values.
5.3 MEASUREMENT METHODS OF
ENVIRONMENTAL VALUE
There are several approaches to derive environmental value i.e. to find out
the monetary value of environmental damage, cost bored by individ ual
and society and the benefits enjoyed by individuals and society. These
approaches are based on:
 Market or quasi market prices
 Arbitrary monetary values set by legislation also called as judicial
value
 Expert opinion or judgment value
 Non market valuati on methods
In this unit we will discuss market prices and non -market prices approach.
In market based approach economic value of environmental goods and
services are estimated on the basis of benefit and cost of those goods and
services. In case of market value or productivity approach, change in
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50 earnings approach, the change in income technique is applied. In these
techniques, value of production of a particular good or service is imput ed
according to the benefits derived from that particular economic activity. In
the productivity change technique, change in an environmental attribute
leads to changes in the output of the marketed good. For e.g., water
pollution leads to decrease in the quality of water which can have an
adverse impact on marine life and fish stock in terms of quantity and
quality. Due to air pollution output of roundwood and berries provided by
forests decreases.
Human Capital Approach or foregone earnings approach: It is a special
case of the productivity change method applied the workforce or human
beings. The value of preventing a fatality at a given time is equal to the
future productive loss evaluated as the discounted sum of the earnings that
the individual would h ave otherwise earned. Since it considers only the
productive aspect of the individual, it underestimates the value of life
compared with estimates derived from WTP approaches.
Non market valuation methods: In simple words, non -market value is the
monetary value of the non -marketed environmental goods and services.
The value of these goods and services are not tradable or determined by
the market forces of demand and supply for e.g. air, water. Though the
valuation of these goods and services is not easy to determine but it is
essential to determine their monetary value so as to protect them from any
kind of degradation or pollution.
 Valuation of these non -market environmental goods and services
arises from the preferences of the individuals and the societ y.
 Different valuation methods are used to estimate benefits or cost to the
individuals and the society.
Valuation of these non -market environmental goods and services is
required for the following reasons:
 It helps the policy makers to take decisions reg arding implementation
of various environmental protection policies based on the gains or the
losses that people experiences due to these goods and services.
 Most of these non -market goods are the public goods which are non -
rival and non -excludable in consu mption. Valuation prevents operation
of inefficient allocation of these services.
 It helps in the litigations arises due to the harmful use of these non -
marketed goods and services.
5.4 CONTINGENT VALUATION METHOD
Contingent Valuation Method relied on ana lytic survey technique or
hypothetical situations to determine monetary value of environmental
goods and services. This method needs information about the individual’s
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51 services and also o ne’s willingness to accept the compensation caused due
to the loss or damage of the non -marketed environmental goods and
services. The information regarding willingness to pay and willingness to
accept is in the direct form i.e. it collects information dir ectly from the
benefited or deprived individuals. This method is more effective when
individuals are well aware or have an adequate information about the non -
marketed environmental goods and services. In connection with this
following approaches are need t o be discussed:
A) Trade -off Game Method:
This method of contingent valuation techniques is relied on the creation of
a hypothetical market for some good or service. In this game the
respondent individuals are directly asked to give a single bid or offer
which is equal to their willingness to pay or willingness to accept
compensation for the environmental good or service. In another form of
repeating bid game the individuals are given a variety of bids (offer prices)
and asked them to decide the price for pa ying and receiving for the non -
marketed environmental good.
(B) Costless -Choice Method:
In this method monetary valuation is not involved. People are given choice
to select from the given hypothetical bundle of goods to determine their
implied or indirect valuation of environmental good or service. This
approach is more useful where barter and subsistence production takes
place.
(C) Delphi Method:
The Delphi Method is also known as Expert Opinion method. In this
survey method, opinion of the experts have been taken into consideration.
By using their expertise in respective field, experts place values on a non -
marketed good or service through a repetitive process where feedback
among the group is considered between each step of repetition. This
approach is useful in the valuation of specialized good or service. This is
really a specialized survey technique because a sufficiently large sample
of experts is presented individually with a list of events and their opinion
regarding the valuation of each event.
Advantages of Contingent Valuation Method:
 Contingent valuation is flexible in nature. It can estimate the economic
value of goods and services that are easily identified and consumed in
discrete units for e.g., user days of recreation, when other means to
measures cannot be applied.
 Contingent Valuation is the most frequently accepted method for
estimating total economic value (TEV). It includes all types of non-
use, passive use value s, use values and also existence values , option
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52  The nature and results of Contin gent Valuation studies are easy to
analyze and describe with the help of survey analysts. Monetary values
can be presented in terms of a mean or median value per capita, per
household, and also an aggregate value for the affected population.
Limitations o f Contingent Valuation Method:
 Though the contingent valuation method has been used for the past
few decades, but whether it satisfactorily measures people's
willingness to pay for environmental quality is questionable.
 Contingent Valuation Method assumed that people are the good judges
of the non -marketed goods and able to convert their choice for the
goods in monetary terms and willingness to pay for the same. However
it is fact that not all the people are able value the non -marketed
environmental goods in monetary terms. Therefore the value
estimation based on their choice for goods may not be a true value.
 The Contingent Valuation Method is based on the survey analysis. It is
possible that the answers given by the people are misspelled or
misinterpreted by the surveyor. In that case the analysis will be biased
in nature. It is also possible that instead of valuing the good people are
just expressing their opinion or feelings for the goods. For example,
people may express their willingness to pay just to contribute to the
social cause and not because of the good itself which may not be
important to them. Or some people may value the good but are not
willing to pay for it.
 It is possible that people may not stick to the question asked in the
survey and valu e the good but they may associate the question with
several other aspects and value the environmental good. In that case
there answers may not be helpful for the survey which is intended for a
specific reason. For e.g. if people are asked for their willing ness to pay
for reduce air pollution or improved quality of air then they may
associate it with the health risk aspect with the air pollution and value
the good, which may not be correct.
 There is high risk in case of getting answers for the hypothetical
questions from the people. In such cases, it is possible that people may
not take the questions seriously and value the good i.e. value will be
either underrated or overrated. For e.g. if people think that their
opinion really matters for decision making an d they are likely to pay
for the same in the future then they may intentionally underrate the
value or express their willingness to pay and vice vis.
 The contingent valuation method ask people to value non -marketed
environmental good in monetary terms i.e. their willingness to pay and
willingness to accept in monetary terms. It is human psychology that
people are always ready to accept more than they pay for some goods.
So the answers from people are based on their psychology or feeling
and not based on the true value of the good. Policy decisions can be
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53  It is possible that people may not understand the question properly if
asked in different manner at different times. For e.g. if people asked to
value a one tenth part of a pa rticular lake first and then they asked to
value the whole or entire lake then people might think lake as a one
good irrespective of its size and value the lake which might not be the
true value.
 There may be differences of the opinion among people about t he
willingness to pay for the environmental good. For e.g. increase in
vehicle tax, some may think increase is not rational and protest against
it whereas some may think this increase as a donation or contribution
to the society and express their willingne ss to pay in terms of the value
for the good.
 In case of a single and repetitive bid it may happen that the bid or offer
price is kept at low in initial bid and then based on the responses
received from the people it can be increased or decreased
subsequ ently. In such a situation the impact of the first or initial bid or
offer price is more and it affects the final bidding or willingness to pay
by the people.
 People may give answers strategically which does not reflect the true
valuation of the non -market ed environmental good. For e.g. decision
to reserve a part of river for fishing activity. It is likely to happen that
people interested in fishing are willing to pay more because of their
enthusiasm but in reality they may undervalue it and willing to pay
less. This biased behavior of people can be determine for true
valuation of environmental good.
 It is likely that people may have to value the good with little
information available to them. When people are not fully aware about
the good then this informat ion bias may lead to overvaluation or
undervaluation of the environmental good.
 Contingent valuation method is expensive and time consuming
because of the extensive survey work and analysis.
5.5 THE REVEALED PREFERENCE METHOD
The demand for environmental goods can be revealed by examining the
purchases of related goods in the private market place. A number of
revealed preference methods such as travel - cost method, hedonic price
method are discussed below.
5.5.1. Travel Cost Method
It is a widely used subs titute market approach. To derive a demand curve
for a specific recreational site, it relies on the information on time and
travel costs. The curve derived is then used to estimate the consumers’
surplus or value of the site to all users. For e.g. valuatio n of recreational
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Environmental Economics
54 In this method the demand for a recreational site or a public park i.e.
number of visits per year to a park is intended to determine as a function
of variables like price, visitors’ income, and socio -economic
characteristics. The price is nothing but the sum of entry fees to the site,
cost of travel, and opportunity cost of time spent by the visitors. Then
demand curve is derived which provides an estimate of the value of the
park.
The Clawson - Knetsch -Hotelling method is the most common estimation
technique used for a specific site. This method uses cost benefit analysis
technique to collect information on travel costs borne by the visitors to
generate a final demand curve for a recreation site. It is mo st appropriate
for those sites where cost of travel is a major component of total visit
costs. These places or sites are generally located outside or faraway places
of the cities.
According to Clawson and Knetsch -Hotelling method, outdoor or
outstation rec reation activities fulfil individual’s physical, social or
psychological needs. It is necessarily a kind of package deal which
involves costs related to anticipation, travel to the site, activities on the
site, the return travel from the site and finally r ecollection.
The travel -cost method is explained in the following figure. Suppose there
is a zoo in a city. The entry fee is OP which is fixed per visit as shown in
the figure. Initial recreational demand for the zoo is shown by the demand
curve BD o and th e environmental quantity level is E 0.

Fig – 5.1
Now suppose there is an improvement in environmental quality of zoo,
which will shift the demand curve to the outward side to AD 1 and
environmental quality level to E 1. This will increase the number of visits
from PC to PK level. The gain in consumers’ surplus is measured equal to
the area PAK. So the net gain in consumers’ surplus after improvement in
environmental quali ty of the lake is measured as
Area РАК – Area PBC = Area ABCK. munotes.in

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55 The travel -cost approach looks at the pattern of recreational use of a zoo.
This information is used to derive a demand curve to estimate the total
amount of consumers’ surplus. For this, visitors are divided into a number
of or igin zones of increasing distance from the zoo. Then a survey is
conducted which determine the time and monetary cost involved in
reaching to the zoo by the visitors.
Advantages of Travel Cost Method
 The travel cost method uses the conventional technique t o estimate
values based on market prices as used by the economists. So the values
estimated are closed to reality.
 This method is based on actual behavior of the people and not on any
hypothetical situation where they have been asked to perceive a
situatio n and their willingness pay.
 This method is relatively cheaper and easy to apply.
 Since this method based on actual behavior of people the on -site
survey is required and therefore the sample size of such on -site survey
is also large. Large sample size enab les to estimate more accurately.
 The results derived from such survey is relatively easy to interpret,
analyze and implement.
Limitations of Travel cost Method
 Wide variations in tastes and preferences of visitors and availability of
substitutes at various distances from the site, may distort demand
estimates.
 The travel -cost method is of limited value if congestion is a problem.
In case of small changes which affects recreational quality may be
difficult to evaluate by using this method.
 This method assume s that recreational quality remains constant over
the range from zero use to full present use at the current admission fee,
which is highly hypothetical.
 This method is not capable of producing any total economic value
estimate where it cannot estimate non -use items such as existence
value. For e.g. non -visitors to the recreation sites. Since it uses only
visitors i.e. use value of recreation sites, there may be an
underestimation of site value.
5.6 HEDONIC PRICE METHOD
The hedonic pricing method is helpful to estimate economic value or
quantitative value of ecosystem or environmental services that directly
affect market prices. The hedonic price method relies on the hypothesis
that while paying the prices for the goods individuals consider both
environment al and non -environmental characteristics of goods. It is
commonly applied to variations/changes in the housing prices which
reflect the value of local environmental attributes. It requires a strong
degree of statistical expertise and model specification. It is also helpful to
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Environmental Economics
56  environmental quality , which includes air pollution, water pollution,
noise pollution
 environmental amenities, includes aesthetic views or proximity to
recreational sites
The real estate market is the most common example of hedonic price
method. For e.g. the price of a building or a plot of land is determined by
the characteristics of both internal factors like its size, appearance,
features like solar panels or state -of-the-art fau cet fixtures, and condition,
and its surrounding environment i.e. external factors such as a high / low
crime rate in the neighborhood, accessibility to schools and a downtown
area, the level of water and air pollution, or the value of other homes
close by .
Therefore, the hedonic price approach intends to identify difference in the
valuation of a property due to environmental differences between various
properties and individuals willingness to pay for an improvement in the
environmental quality that they e xperience and the social value of
improvement.
Let us discuss this with an example. Suppose the price of a house is
determined by a number of factors like structural characteristics such as
number of rooms, parking lots, plot size etc. and the environmenta l
characteristics of that area. Here we need to estimate the economic value
an individual is willing to pay considering all these environmental factors
and non -environmental factors. With this information we will derive a
hedonic price function.
Pi = f [S 1i…………S ki, N1i,…………….N mi, Z1i………….Z ni]
Here Pi = house price
S = structural characteristics of the house
Si = type of construction, house size and number of rooms
N = neighbourhood characteristics of house
Ni = accessibility to work, crime rate, quality of schools etc.
Z = air quality (only environment variable affecting property value)
if the linear relation exists, then the equation becomes
Pi = [α 0 + α 1S1i + ….. + α KSKi + β 1N1i + ……. + β mNmi + γaZa]
and y a > 0.
A positive relation between air quality and property price is represented in
the following Figure. It indicates that house price increases with the
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57

Fig 5.2
The following Figure represents that the implicit marginal purchase price
of Z a (air quality) varies or changes according to the ambient level (Z a)
prior to the marginal change.

Fig 5.3
In this way, the hedonic method offers a useful way of estimating the
change in amenity benefits.
Advantages of the Hedonic Price Meth od
 This method can be used to estimate values on actual prices is the
main advantage of it.
 Since property market is highly volatile it is quick in responding to the
information based on this method.
 Hedonic price method relies on the information received from property
records which are accurate and therefore reliable.
 The primary data i.e. sales and characteristics of property and the
secondary data required for the analysis in this method is easily and
readily available.
Limitations of the Hedonic Price M ethod
 This method is widely relevant to properties but it is of no relevance
when dealing with many types of public goods such as defence, air
pollution and endangered species, etc.
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58  The hedonic price method may be used to estimate the present
environmental benefits provided to local residents by an area. It cannot
reliably predict the benefits which will be generated by future
improvements which will have the effect of shifting the existing
function. So the analysis and the hedonic price function will be of no
use in future time.
 Analysis based on expectations regarding future environmental quality
may bias present purchases away from that level which is dictated by
present characteristic levels.
5.7 SUMMARY
1. The government policies to protect and preserve the environment brings
about the economic costs. To assess and implement any such
environmental policy requires economic valuation of these likely
environmental damages.
2. Economists have developed tools to measure environmental values. For
this it estim ates individual’s willingness to pay to benefit from
environmental goods. The costs due to environmental damage are
measured by the loss suffered by the individuals who benefited from
the damaged good and deciding the appropriate compensation for
losing th e benefit (willingness to accept).
3. Total Economic Value (TEV) combines all the different values, which
are grouped according to the service provided by the environmental
good. It distinguishes between use value and non -use value. The use
values are base d on the actual use of the resource. The non -use values
are not related to its present use.
4. There are several approaches to derive environmental value i.e. to find
out the monetary value of environmental damage, cost bored by
individual and society and the benefits enjoyed by individuals and
society. These approaches are based on:
 Market or quasi market prices
 Arbitrary monetary values set by legislation also called as judicial
value
 Expert opinion or judgment value
 Non market valuation methods
5. Contin gent Valuation Method relied on analytic survey technique or
hypothetical situations to determine monetary value of environmental
goods and services. This method needs information about the
individual’s willingness to pay for the use/consumption of non -
marketed goods and services and also one’s willingness to accept the
compensation caused due to the loss or damage of the non -marketed
environmental goods and services. munotes.in

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59 6. In travel cost method the demand for a recreational site or a public park
i.e. number o f visits per year to a park is intended to determine as a
function of variables like price, visitors’ income, and socio -economic
characteristics. The price is nothing but the sum of entry fees to the
site, cost of travel, and opportunity cost of time spent by the visitors.
Then demand curve is derived which provides an estimate of the value
of the park.
7. The hedonic price method relies on the hypothesis that while paying the
prices for the goods individuals consider both environmental and non -
environmenta l characteristics of goods. It is commonly applied to
variations/changes in the housing prices which reflect the value of
local environmental attributes.
5.8 QUESTIONS
1. Explain the meaning of the term Economic value of environment.
2. Differentiate betwe en use and non -use values.
3. Explain briefly market based and non -market based measurement
methods of environmental value.
4. Briefly explain Contingent Valuation method.
5. Discuss in detail the Travel Cost Method of environmental value.
6. Explain Hedonic Price Method as one of the method of non -market
based method of environmental value.



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60 Module IV
6
GLOBAL ENVIRONMENTAL ISSUES -I
Unit Structure:
6.0 Overview
6.1 Unit Objectives
6.2. Trade and Environment
6.3. Overview of Trans -Boundary Environmental Problems
6.4. Meaning of Global Warming
6.5. Cause of global warming:
6.6. Challenges of Gl obal Warming:
6.7. Summary
6.8. Exercise questions
6.9. Suggested Readings
6.0 UNIT OVERVIEW
This unit provides an explanation to Trade and Environment. The unit
explains Trans Boundary Environmental Problems. The unit then provides
an overview of Global w arming, its causes and Challenges.
6.1 UNIT OBJECTIVES
• To explain the explanation to Trade and Environment.
• To familiar with Trans -Boundary Environmental Problems
• To explain the overview of Global warming, its causes and Challenges.
6.2 TRADE AND EN VIRONMENT
Trade refers to the voluntary exchange of goods or services between
economic actors. Since transactions are consensual, trade is generally
considered to benefit both parties. In finance, trading refers to the
purchase and sale of securities or o ther assets.It has been widely
recognized that globalization and that global trade plays an increasingly
important role in determining relative economic growth among countries.
International trade has grown considerably in recent decades. World
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61 services, resources and capital. trade not only help to optimize the
utilization of global resources but it can benefit all participating countries
as well.This realization has caused the Ge neral Agreement on the Tariffs
and Trade (GATT) to evolve into the World Trade Organization (WTO).
In addition, free trade zones have been expanding. More European
countries now belong to the European Union (EU), and the United States,
Canada, and Mexico h ave created the North American Free Trade Area
(NAFTA)
This growth in trade has influenced the quality of the environment in
exporting and importing countries. The notion that free trade among
countries leads to welfare maximization becomes questionable, w hen
environmental degradation lowers that welfare. While comparative
advantage implies that a country might specialize in the production of a
pollution intensive commodity, such pollution would cause the
environmental quality of the country to deteriorate. In this case there is a
trade -off between gains from trade and environmental deterioration in
country, compared to a country producing non -polluting goods, since
income will increase only if gains from trade overcompensate welfare
losses from environmenta l damage. Stricter environmental policies in the
first country would thus affect its comparative advantage and
consequently its economic growth.
Such interactions between trade and the environment haveproduced an
increasingly greater need for a careful an d balanced assessment of the
issues involved and the challenges they pose to policy makers.Today the
above issues linking environment and trade have expanded broadly. Such
issues are as follows.
(1) effects of environmental policies or regulations on compa rative
advantage, specialization, industrial redeployment, trade patterns and
terms of trade;
(2) effects of trade on environmental quality and welfare, and the use of
trade policies for environmental purposes;
(3) use of environmental policy measures as s trategic trade instruments to
protect industries and stimulate growth
(4) coordination of the sometimes conflicting objectives of trade policy
and environmental policy; and
(5) control of trans boundary pollution, including trade in wastes.
In addition, ex panded trade tends to increase the scale of production for
the world as a whole, meaning that the total volume of pollution and
environmental damage is likely to increase. Trade also necessarily
involves energy use for transportation, with resulting air po llution and
other environmental impacts.The terms of trade have two distinct effects
in the country. One is a net wealth effect that leads to an increase in the
aggregate demand for goods and services. The other, terms of trade effect,
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62 producing the nontrade commodity rises.Obligations are set out to foster
good environmental governance, mandate the effective enforcement of
environmental laws and regulations, and ensure that countries do not
compromise their environmental laws to attract trade or investment.
6.3 OVERVIEW OF TRANS -BOUNDARY
ENVIRONMENTAL PROBLEMS
Trans Boundary means crossing the border between two or more countries
or areas and affecting both or all areas. A trans boundary problem is an
environmental problem that is trans boundary in scale. In other words, it is
an environmental problem originating in, or contributed by, one country
and affecting (or impacting) another.
1. Transboundary Pollution Issue: Pollution can be transpo rted across
hundreds and even thousands of kilometers. The incredible distances
that pollution can spread means that it is not contained within the
boundaries of any single nation. This is why it is called
'Transboundary Pollution'.Air pollution, water pol lution, and land
pollution are three major forms of environmental pollution. Pollution
can also refer to excessive human activity, such as light and noise
pollution, or to specific pollutants such as plastic or radioactive
material. Marine pollution is an excellent example of a Transboundary
pollution problem that involves many nation -states and unlimited point
sources of pollution. Marine pollution can be the result of on -shore
industrial processes that use the ocean as a waste disposal site.

2. Transboundar y Water Conflict: Transboundary water conflict' is
defined as verbal, economic, or militarily hostile actions between
stakeholders over internationally shared water resources. Within this
group of actions, 'violent transboundary water conflict' is reserved to
describe militarily hostile actions.The problems of Transboundary
pollution include issues like the acidification of soils and lakes through
acid rain, transboundary air pollution (known variably as smog, haze,
or smoke), and downstream river or ocean pollution due to upstream
activities.Transboundary cooperation allows countries to advance
sound and sustainable regional and national infrastructures for storing,
regulating, and exploiting their water resources.

3. Trans boundary aquifers : An aquifer is a body of saturated rock
through which water can easily move. Aquifers must be both
permeable and porous and include such rock types as sandstone,
conglomerate, fractured limestone and unconsolidated sand and gravel.
trans boundary aquifers (TBAs) are aquif ers that underlie more than
one country or political region.Transboundary aquifers are found in the
subsurface space, in which water occurring in the rock pores is found
in almost all types of rock formations. Management of TBA resources
is therefore depen dent on cooperation between countries and it is
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63 4. Trans boundary River issues: Approximately 60 percent of the
world's fresh water supply is located in 276 Transboundar y rivers,
such as the Nile, Rhine, Danube, Indus, Columbia, and Mekong
basins. These Transboundary rivers cover 45 percent of the earth's land
surface and provide a home for 40 percent of the world's population.
Some notable examples are - The Jordan River , whose sources run
from upstream Lebanon and Syria to downstream Israel and Jordan,
The Nile, running from upstream Ethiopia through Sudan to
downstream Egypt, The Ganges, running from upstream India to
downstream Bangladesh.Brahmaputra (Transboundary Riv er) Rises
from Bhagirath Glacier, Manasarovar in Himalayas and flows for a
total length of 2900 km. It passes through China, India and Bangladesh
before emptying in the Ganges river in Ganges Delta.

5. Transboundry Wetland Issues: Human activities cause wetla nd
degradation and loss by changing water quality, quantity, and flow
rates; increasing pollutant inputs; and changing species composition as
a result of disturbance and the introduction of nonnative
species.Transboundary sites are created when two or more parties in
the Convention cooperate across international boundaries to protect
shared wetland areas.Wetlands are threatened by reclamation and
degradation through drainage and landfill, pollution (discharge of
domestic and industrial effluents, disposal o f solid wastes),
hydrological alteration (water withdrawal and changes in inflow and
outflow), over -exploitation of natural resources etc.Wetlands
destruction has increased flood and drought damage, nutrient runoff
and water pollution, and shoreline erosio n, and triggered a decline in
wildlife populations.

6. Trans border Crime issue: Trans border crime: “trans -border crime”
represent a number of illegal and notorious activities carried out by
individuals and groups across national and international borders, e ither
for financial or economic benefits and also socio - political cum
religious considerations.e.g. drug trafficking, weapons trafficking,
terrorism, corruption, money laundering, human trafficking,
cybercrime, environmental crime, and smuggling of cultur al artifacts.

7. Cross -border migration :Cross -border migration poses security
challenges for the modern nation -state, as the influx of populations
exert massive pressures on a country’s resources and governance
ecosystems. The undocumented migrants, for the ir part, not only
struggle for their livelihood but often face fundamental crises of
identity and belonging like India’s eastern borders. Very often the
undocumented migrants are perceived to be ‘illegal outsiders’ and
‘encroachers’. They are faced with ec onomic and identity crises
which, multiplied manifold, accumulate to a serious humanitarian
emergency.

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64 8. Trans boundary Natural resources issues: Transboundary or shared
natural resources are resources that cross the political boundaries of
two more States .Studies on community based natural resource
management have shown that there is need to incorporate local
communities in natural resource management.

6.4 MEANING OF GLOBAL WARMING

Meaning: global warming, the phenomenon of increasing average air
temper atures near the surface of Earth over the past one to two centuries.
Climate scientists have since the mid -20th century gathered detailed
observations of various weather phenomena (such as temperatures,
precipitation, and storms) and of related influences on climate (such as
ocean currents and the atmosphere’s chemical composition). These data
indicate that Earth’s climate has changed over almost every conceivable
timescale since the beginning of geologic time and that human activities
since at least the be ginning of the Industrial Revolution have a growing
influence over the pace and extent of present -day climate change.

It is also known as the 'Greenhouse Effect,' which is one of the major
causes affecting global warming. Though the current state of globa l
warming is considered quite controversial, authentic researches have
provided pertinent data to support the same. Widespread adoption and
implementation of necessary solutions are essential to restrain these
emissions and curtail the intensified effects of climate change. Now, we
shall move forward to a detailed discussion on the causes and effects of
global warming.

6.5 CAUSE OF GLOBAL WARMING

1. Higher Levels of Deforestation: Deforestation affects the release of
aerosols and other chemical compounds that affect clouds and changes
in wind patterns, causing a flux in precipitation levels. In basic terms,
Trees and plants are responsible for being the primary source of
oxygen. By taking the carbon dioxide in, they release oxygen in the
air, thereby maint aining a state of ecological balance, causing lesser air
pollution. Planned human activities like continued forest loss for
industrial and commercial motives drive the increase in carbon dioxide
concentrations. As we know, Carbon dioxide is one of the lead ing
heat-trapping gases, mainly responsible for average warming and
environmental imbalance over the past few decades.

2. Transportation and Use of Vehicles: In this fast -paced world, people
often use vehicles even for covering short distances. Gaseous
emis sions from cars and vehicles often drive temperature rise by
trapping energy, which translates into heat. Such activities come under
'anthropogenic forcing,' i.e., human -influenced forces on the climate
system. Continued transportation around congested are as contributes
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65 According to IPCC reports, the transportation sector's contribution has
grown by more than 50% since 1992 and continues to be one of the
leading causes of global warming.

3. Emissions from Industries and Power Plants: According to a report
stated in 2018, some of the significant global anthropogenic
greenhouse gas emissions are almost equal to 52 billion tonnes of
Carbon dioxide. Out of which 72% is released from industries a nd
power plants. With the advent of industrialization, the rising usage of
electricity and heat, global warming has increased to a great extent.
The release of pollutants from these sources has a significant impact
on the environment and disturbs the delic ate balance of nature.

4. Agriculture and Land Surface Changes: Frequent practices of
agriculture take up almost 50% of the world's habitable land. Short
term agricultural cultivation affects nearly 24% of the permanent land -
use change. These activities also add up to the rise in temperature and
GHG emissions from the land surface. The changes in land surface
disturb the natural process of carbon storage and affect the reflection
and absorption of sunlight heat. Soil erosion, Deforestation, and
chemical ferti lizers application lead to increased runoff that carries
pollutants into water resources and eventually to the oceans.

5. Combustion of Fossil Fuels, Overpopulation: Most of the heat -
trapping emissions from burning coal, gas, and oil from industries and
cars, along with widespread Deforestation and rising levels of black
carbon pollution or 'soot' in the form of aerosols affecting Earth's
albedo come under this type. Also, the primary gas causing Global
warming is Carbon dioxide, which is influenced by rising
overpopulation.

6. Volcanic Eruptions : They constitute one of the significant natural
causes affecting global warming because of the increased release of
gases and smoke from the eruptions.

7. Natural Forest Fires : When significant scale vegetation burns,
leading to forest blaze, there is a release of stored carbon and a rise in
greenhouse gas emissions. These emissions further trap solar energy
leading to Global warming.

8. Solar Activities: Changes in solar irradiance in wavelengths and other
variations su ch as solar flares or sunspots, if larger enough, could have
an unprecedented impact over global warming and atmospheric
temperatures.

9. Melting Permafrost and Glaciers: Towards the north and south poles
of the planet, considerably large amounts of carbon are frozen in the
form of permafrost. Disturbances such as solar activities, forest fires,
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66 sequestration into the atmosphere, giving way to ecological
imbalances.
6.6 CHALLENGES OF GLOBA L WARMING
1. Rise in Temperature Leading to Ice Melt: Melting glaciers and snow
melts will cause severe water shortages and droughts with higher
frequencies giving way to heatwaves and extreme weather conditions
in the mid -latitudes. Thinning ice of the nor thern seas will make the
atmospheric conditions vulnerable to control.

2. Ecological Risks: Global warming has contributed to the extension of
drier climatic zones such as deserts in the subtropics. Mostly
ecosystems and animal life will be affected by high er carbon dioxide
levels and global temperatures leading to climate change, which will
result in the extinction of many species and reduced ecological
diversity.

3. The Threat to Marine Life: Global warming can lead to the destruction
of marine and coral lif e underwater. Higher content of carbon dioxide
in the water inflicts damage to valuable natural resources.

4. Loss of Settlements: Global warming can also lead to Inundation from
sea level rise, which can further threaten infrastructure and
establishments o f human settlements. This severely leads to a decrease
in the human population. Droughts, temperature rise, loss of glacial
rivers puts the state of agriculture on ain the rampage.

5. Health Factors: There are various indirect effects such as malnutrition
inflicted by crop failures. Scanty rainfall leading to desertification can
also cause several diseases due to global warming.

6.7 SUMMARY

Such interactions between trade and the environment have produced an
increasingly greater need for a careful and b alanced assessment of the
issues involved and the challenges they pose to policy makers.

Trans Boundary means crossing the border between two or more countries
or areas and affecting both or all areas. A trans boundary problem is an
environmental problem that is trans boundary in scale.

Global warming, the phenomenon of increasing average air temperatures
near the surface of Earth over the past one to two centuries. It has its
causes and challenges.



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67 6.8 EXERCISE QUESTIONS

1. Explain the Interrelatio n between Trade and Environment.
2. What are the Transboundary environmental issues?
3. What is Global Warming? Explain its causes.
4. Discuss the Challenges of Global Warming.
5. Write a note on – Transboundary Pollution issues.

6.9 SUGGESTED READINGS

1.Hanley N, J.F. Shogern and Ben White, Environmental Economics in
Theory and Practice,Macmillan, 1997.
2. Kolstad,C.D., Environmental Economics, Oxford University Press, New
Delhi, 1999.
3. Sankar,U. (Ed), Environmental Economics, Oxford University Press ,
New Delhi, 2001.
4. Bhattacharya, R.N. (Ed), Environmental Economics – An Indian
Perspective, Oxford University Press, New Delhi, 2001



















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68 7
GLOBAL ENVIRONMENTAL ISSUES - II
Unit Structure:
7.0 Overview
7.1 Unit Objectives
7.2. Urbanisation
7.3. Causes of Urbanisation:
7.4 Challenges of Urbanisation
7.5. International environmental agreement
7.6. Summary
7.7 Exercise questions
7.8 Suggested R eadings
7.0 UNIT OVERVIEW
This unit provides an explanation to Trade and Environment. The unit
explains Trans Boundary Environmental Problems. The unit then provides
an overview of Global warming, its causes and Challenges.
7.1 UNIT OBJECTIVES
• To expla in the explanation to Trade and Environment.
• To familiar with Trans -Boundary Environmental Problems
• To explain the overview of Global warming, its causes and Challenges.
7.2 URBANISATION
Urbanization is the process through which cities grow, and hig her and
higher percentages of the population comes to live in the city.
Urbanisation is a form of social transformation from traditional rural
societies to modern, industrial and urban communities. It is long term
continuous process. It is progressive conc entration of population in urban
unit. The period after 1941, witnessed rapid growth of four metropolitan
cities in India, which were Kolkata, Delhi, Mumbai, and Chennai. The
nation's economy saw a rise due to industrial revolution and the invention
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69 Urbanization is the movement of people from rural to urban regions,
expanding cities and towns. It is the process through which cities grow as
higher percentages of the populat ion come to live in the city.

Urbanization involves a complex set of economic, demographic, social,
cultural, technological, and environmental processes that increase the
proportion of the population of a territory that lives in towns and cities.

7.3 CAU SES OF URBANISATION

Various reasons have led to the growth of cities. They are as follows:

1. Industrialization:
Industrialization is a major cause of urbanization. It has expanded the
employment opportunities. Rural people have migrated to cities on
accou nt of better employment opportunities.
2. Social factors:
Many social factors such as attraction of cities, better standard of living,
better educational facilities, need for status also induce people to migrate
to cities.

3. Employment opportunities:
In rural sector people have to depend mainly on agriculture for their
livelihood. But Indian agriculture is depending on monsoon. In drought
situations or natural calamities, rural people have to migrate to cities.

4. Modernization:
Urban areas are character ized by sophisticated technology better
infrastructure, communication, medical facilities, etc. People feel that they
can lead a comfortable life in cities and migrate to cities.

5. Rural urban transformation:
It is an interesting aspect that not only ci ties are growing in number but
rural community is adopting urban culture, no longer rural communities
are retaining their unique rural culture. Rural people are following the
material culture of urban people. Urban rural transformation can be
observed in t he following areas.

7.4 CHALLENGES OF URBANISATION

1. Overcrowding:
Overcrowding is a situation whereby a huge number of people live in a
small space. This form of congestion in urban areas is consistent because
of overpopulation and it is an aspect tha t increases day by day as more
people and immigrants move into cities and towns in search of a better
life. Most people from rural or undeveloped areas always have the urge of
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70 2. Development of Slums:
The cost of living in urban areas is very high. When this is combined with
random and unexpected growth as well as unemployment, there is the
spread of unlawful resident settlements represented by slums and
squatters. The growth of slums and squatters in urban areas is even further
exacerbated by fast -paced industrialization, lack of developed land for
housing, a large influx of rural immigrants to the cities in search of a
better life, and the elevated prices of land beyon d the reach of the urban
poor.

3. Water and Sanitation Problems:
Because of overpopulation and rapid population increase in most urban
centers, it is common to find there are inadequate sewage facilities.
Municipalities and local governments are faced wit h serious resource
crisis in the management of sewage facilities. As a result, sanitation
becomes poor and sewages flow chaotically, and they are drained into
neighboring streams, rivers, lakes, or seas.

Eventually, communicable diseases such as typhoid, dysentery, plague,
and diarrhea spread very fast leading to suffering and even deaths.
Overcrowding also highly contributes to water scarcity as supply falls
short of demand.

4. Poor Health and Spread of Diseases:
The social, economic and living condition s in congested urban areas
affects access and utilization of public health care services. Slum areas in
particular experience poor sanitation and insufficient water supply which
generally make slum populations susceptible to communicable diseases.
Environm ental problems such as urban pollution also cause many health
problems namely allergies, asthma, infertility, food poisoning, cancer and
even premature deaths.

5. Traffic Congestion:
When more people move to towns and cities, one of the major challenges
posed is in the transport system. More people means an increased number
of vehicles which leads to traffic congestion and vehicular pollution.
Many people in urban areas drive to work and this creates a severe traffic
problem, especially during rush hours. Also as the cities grow in
dimension, people will move to shop and access other social needs/wants
which often cause traffic congestion and blockage.

6. Urban Crime:
Issues of lack of resources, overcrowding, unemployment, poverty, and
lack of social serv ices and education habitually lead to many social
problems including violence, drug abuse, and crime. Most of the crimes
such as murder, rape, kidnapping, riots, assault, theft, robbery, and
hijacking are reported to be more prominent in the urban viciniti es.
Besides, poverty -related crimes are the highest in fast -growing urban
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71 7. Unemployment:
The problem of joblessness is highest in urban areas and it is even high er
among educated people. It is estimated that more than half of unemployed
youths around the globe live in metropolitan cities. And, as much as
income in urban areas is high, the costs of living make the incomes seem
horribly low. The increasing relocatio n of people from rural or developing
areas to urban areas is the leading cause of urban unemployment.

8. Housing Problems:
Urbanization attracts people to cities and towns which leads to a high
population increase. With the increase in the number of peopl e living in
urban centers, there is a continued scarcity of houses. This is due to
insufficient expansion space for housing and public utilities, poverty,
unemployment, and costly building materials which can only be afforded
by a few individuals.

7.5 INT ERN ATIONAL ENVIRONMENTAL
AGREEMENT

International environmental agreements (IEAs) are treaties negotiated,
signed, and ratified by individual nation -states to address transboundary
environmental issues. This article provides an overview of the recent stat e
of the art in the domain of the political economy of the formation of IEAs.
A product of the first UN Conference on the Human Environment, the
Stockholm Declaration (1972) was the first international document to
recognize the right to a healthy environme nt through 26 principles, many
of which have played an important role in the subsequent development of
IEL.

1. Stockholm Conference (UNCHE, 1972):
The United Nations Conference on Human Environment (UNCHE) —held
in June 1972 in Stockholm, Sweden —marked the be ginning of modern era
of environmental governance,introducing more inclusive and
comprehensive international agreements and regulations onenvironmental
issues. This conference is also widely known as the Stockholm
Conference.The event is broadly considered the first major worldwide
attempt to address the globalenvironmental problems and preserve the
human environment. The conference was also thefirst international
environmental agreement recognizing the fact that ―environmental
problems of broad internation al significance fall within the competence of
the United Nationssystem (UN 1972: 34). In other words, Stockholm
conference placed the environmentalproblems at the center of global
debates, particularly those occurring within the domain ofinternational
organisations like UN. As a result, the international organisations
werecompelled to take appropriate measures to deal with the
environmental problems —particularly those are global in nature. Since
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72 agreements aiming at the preservation and enhancement of the human
environment.

The United Nations Conference on Human Environment in 1972 was
attended by delegations from more t han 110 countries and over 400 non -
governmental and intergovernmental organisations. The ‗Stockholm
Declaration’, adopted at the UN conference, is one of significant
documents in the history of global environmentalgovernance. While
comparing the latter wit h Universal Declaration of Human Right
(UDHR1948) in his book entitled, Introduction to International Law, J. G.
Starke (1989: 406) termedthe Stockholm Declaration as an important
environment manifesto ―expressed in the form anethical code intended to
gove rn and influence future action and programmers, both at thenational
and international levels.

2. United Nations Environment Programme (UNEP):
The establishment of United Nations Environment Programme (UNEP)‘
was one of the greatest achievements of the Stock holm Conference. This
international environmental bodywas primarily set up, in December 1972
by the General Assembly, to coordinate theenvironmental activities within
the United Nations system. UNEP headquartered in Nairobi, Kenya was
labelled to be the en vironmental conscience of the UN system (Paehlke
eds., 1995: 653). The main tasks of this organisation are to promote
globalcooperation on ecological issues, guide other UN‘s environmental
agencies, coordinate UNactivities‘ related to the environment, monitor
global environmental management and encourage scientific research and
projects among others. Also, it intends to raise public awareness about the
dangers of environmental change and deterioration, and attempts
toinculcate environmental education through sponsored television and
radio progra mmes. It is estimated that more than 10,000 educators in over
140 countries have been involved inUNEP‘s educational activities (ibid.,
654). Besides, UNEP does not only encourage thestates‘ agencies but also
the private actors like NGOs, TNCs, multinational voluntaryorganisations
and civil society groups to promote the sustainable use of the natural
resources.Since its origin, U NEP has been one of the biggest proponents
of the environmentfriendly and sustainable model of development. It has
supported the varied scientificresearches, training programmes and
projects aiming to develop an environment sensitivedevelopment agendas
and models. It has also facilitated worldwide cooperation among thestates
in global politics, particularly in the context of international environmental
agreementsand policies. Maurice Strong, the first executive director of
UNEP, coined the phrase theprocess is the policy,‘ which captures much
of UNEP‘s strategy of bolstering internationalenvironmental concern and
building national capacity for managing environmental problems (ibid.,
653). It is observed that since the inception of UNEP, more than 40
multilat eralenvironmental agreements were signed under its auspices
(Kochtcheeva eds., 1999). Morespecifically, UNEP in the past three
decades has played a substantial role in initiatingnegotiations on reducing
the use of chemicals and gases causing ozone layer de pletion. At thesame
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73 conventions, likethe Montreal Protocol on Substances that Deplete the
Ozone Layer (1987) and the UNconvention on Biological Diversity (1992)
among others. In this way, UNEP intends todevelop a worldwide
consensus among the both public and non -sate actors about
theenvironmental problems and organizing collective actions for ensuring
the sustainable andgreen future. Furthermore, UNEP has developed an
international monitor ing system, known as Earthwatch. It is designed to
engage the governments in a free -flowing exchange ofenvironmental
information and green ideas. Earthwatch also enables the global and
nationalactor to assess potential risks and threats to human environmen t so
they may act accordingly.

3. Montreal Protocol (1987):
The Montreal Protocol, entitled as ‗the Montreal Protocol on Substances
that Deplete the Ozone Layer’, was initially signed in 1987 by the twenty -
four countries and the EuropeanCommunity at the Head quarters of the
International Civil Aviation Organisation in Montreal,Canada. Later, the
same treaty was ratified by more than 180 countries. This globalagreement
is the first of its kinds in the history of environmental protection which
wasdesigned to pro tect the stratospheric ozone layer by reducing the
global production, emissionand usage of ozone -depleting chemical
substances within the stipulated time period. Howeverthe Vienna
Convention for the Protection of the Ozone Layer (1985) —that recognises
theresponsibility of states to protect the environment and human health
from the adverse effectsof ozone depletion —set out the framework under
which the Montreal Protocol wasnegotiated. The protocol was thus
adopted on September 16, 1987 but it came into force onJanurary 1, 1989
and subsequently amended many times.The Montreal Protocol recognised
the worldwide emission of certain chemical substances that could deplete
or substantially modify the earth‘s ozone layer in a way thatwas assessed
to adversely impact the environment and human health.

4. Rio Conference (1992):
The United Nations Conference on Environment and Development‘
(UNCED), also popularly known as the Earth Summit or Rio Conference,
was convened in 1992 in Rio deJaneiro. This global event marked th e
twentieth anniversary of historical StockholmConference held in 1972.
The Rio Conference, the largest environment conference in UNhistory,
was attended by over 170 government representatives, 35000
environmental activists,politicians and business represe ntatives, along
with thousands of journalists andrepresentatives of non -governmental
organisations (NGOs) from around the world. Theconference negotiated
on a wide range of environmental issues ranging from biodiversity,
climate change, pollution, forest m anagement, poverty and sustainable use
of resources. The foremost purpose of the conference, however, was to
reconcile the worldwide developmentalgoals with the need for
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74 5. Declaration on Environment and Development:
The Declaration on Environment and Development‘ adopted at the Earth
Summit is also widely known as Rio Declaration comprising of 27
principles that reaffirmed the StockholmDeclaration and defined the
responsibilities of st ate and non -state actors in safeguarding theplanet. In
other words, it has urged the nations to pursue a sustainable and
environmentsensitive developmental agenda on the one hand and
encouraged the individuals to live amore eco -friendly lifestyle on the
other. It has further highlighted the need of evolving newlevels of global
corporation to deal with the emerging environmental challenges, and
preserve and restore the earth‘s ecosystem.

6. Convention on Biological Diversity (CBD):
The Convention on Biological Diversity‘, also called Biological Treaty, is
another significant achievement of the Rio Conference. The convention
was opened for signatures in 1992 at the Earth Summit and entered into
force on December 29, 1993. The biodiversityexists on Earth in the m any
forms of life including ecosystem, plants, animals,microorganisms, fungi
to genetic diversity. The convention recognises the central role
ofbiological diversity in maintaining the life sustaining systems of the
biosphere, and thus itrequires the states to initiate measures for the
protection and the sustainable use of biologicaldiversity (UN 1992). In
other words, the CBD affirms that the preservation of biodiversity is a
common concern of humankind demanding collective efforts at all levels
(global, na tional, local and societal levels). This multilateral binding
agreement has today been approved byover 190 countries and the
European Union.

Agenda 21
7. Agenda 21:
It is the most significant agreement signed at the Earth Summit. It is
widely recognised as a n international blueprint or global plan of action for
achieving sustainability in the twentieth century. Over 180 governments
agreed to Agenda 21 in 1992 at the EarthSummit. The countries approved
the same are to be monitored by the InternationalCommissio n on
Sustainable Development, and are encouraged to promote the agenda 21
atall levels (local, regional, national and global levels). Agenda 21 outlines
the actions thatinternational community, governments, non -governmental
organisations, international organisations, civil society, and the
communities can take to realise the aim of sustainableworld (Cunningham
et al., 1994: 855). It also recognises the importance of everyone
includedthe governmental agencies, NGOs, civil society, and local
organisations amo ng others inbuilding a sustainable future.

8. Paris Agreement (2015):
The Paris Agreement, also known as Paris Climate Accord or Paris
Climate Agreement, was adopted on 12 December, 2015 by 195 nations at
the twentieth -first Conference of Parties(COP 21) to UN Framework
Convention on Climate Change (UNFCCC). The Agreement isanother
noteworthy attempt to enhance the implementation of UNFCCC. It offers
a newuniversal legally -binding framework to combat the global threat of munotes.in

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Global Environmental Issues -II
75 climate change andstrengthen the g lobally coordinated efforts towards a
sustainable future beyond 2020. In otherwords, the Paris Climate
Agreement is tended to replace the Kyoto Protocol after its second
commitment period ends in January 2020. The agreement is primarily
aimed at keeping th e rise in global temperature to well below 2 degrees
Celsius above pre -industrial levels, andlimiting the temperature increase t o
1.5 degrees Celsius (UN 2015: 3). Also, the agreementintends to strengthen
the global capability of dealing with the potential impacts of
climatechange.

7.6 SUMMARY

Trade can have both positive and negative effects on the environment.
Economic growth resulting from trade expansion can have an obvious
direct impact on the environment by increasing pollution or degrading
natural resources.

it is evident that global warming is a real phenomenon, and it is happening
right now. There are several factors that contribute to this issue, and the
impacts can be seen both socially and environmentally. If we do not take
the necessary preca utions and act now, the situation is only going to
worsen in the future.
International environmental agreements (IEAs) are treaties negotiated,
signed, and ratified by individual nation -states to address transboundary
environmental issues. This article pro vides an overview of the recent state
of the art in the domain of the political economy of the formation of IEAs.
7.7 EXERCISE QUESTIONS

1. What is Urbanisation? Explain the causes of Urbanisation.
2. Explain the challenges of Urbanisation.
3. What is Global Warming? Explain its causes.
4. Discuss International Enviornmental Agreements.
5. Write a note on – a. Agenda 21
b. Paris Agreement
6. Explain United Nations EnviornmentalProgramme.

7.8 SUGGESTED READINGS

1.Hanle y N, J.F. Shogern and Ben White, Environmental Economics in
Theory and Practice,Macmillan, 1997.
2. Kolstad,C.D., Environmental Economics, Oxford University Press, New
Delhi, 1999.
3. Sankar,U. (Ed), Environmental Economics, Oxford University Press,
New De lhi, 2001.
4. Bhattacharya, R.N. (Ed), Environmental Economics – An Indian
Perspective, Oxford University Press, New Delhi, 2001
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