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06 Lecture Presentation PC (1)

Uploaded: A year ago
Contributor: jdhhjsk
Category: Ecology
Type: Lecture Notes
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Filename:   06_Lecture_Presentation_PC (1).pptx (3.4 MB)
Page Count: 80
Credit Cost: 4
Views: 91
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Transcript
This lecture will help you understand: Culture, worldviews, and choices Environmental ethics Economics and the environment Classical and neoclassical economics Economic growth, well-being, and sustainability Environmental and ecological economics Sustainable development Central Case Study: Costa Rica Values Its Ecosystem Services Costa Rica was once losing its rainforests to logging faster than almost any other country Government began paying landowners to protect ecosystem services by planting or saving forest Forests cleanse water, prevent erosion, etc. Forest cover has gone from 17% of the country in 1983 to 52% today Per capita income has increased by 50% Ethics and economics involve values Both disciplines deal with what we value Values affect our decisions and actions Solving environmental problems needs more than understanding how natural systems work Values shape human behavior Culture = knowledge, beliefs, values, and learned ways of life shared by a group of people Worldview = a person’s or group’s beliefs about the meaning, operation, and essence of the world How a person sees his or her place in the world Many factors shape our worldviews Religious and spiritual beliefs shape our worldview and perception of the environment Political ideology: government’s role in protecting the environment Shared cultural experiences if members of the community have lived through similar experiences To find sustainable solutions, scientific knowledge must be used in the context of ethics and economics Environmental Ethics Ethics = the study of good and bad, right and wrong Moral principles or values held by a person or society For example, promoting human welfare, maximizing freedom, minimizing pain and suffering Relativists = those who believe ethics varies with social context Universalists = those who believe right and wrong remains the same across cultures and situations Ethics is a prescriptive pursuit: it tells us how we ought to behave Ethical standards help us judge right from wrong Ethical standards = criteria that help differentiate right from wrong Categorical imperative: the Golden Rule Treat others as we would prefer to be treated ourselves Most world religions teach this same lesson Principle of utility states that something is right when it produces the most practical benefits for the most people We value things in two ways Instrumental (utilitarian) value = to value something for its pragmatic benefits by using it Forests are valuable because we can harvest timber from them Intrinsic (inherent) value = to value something for its own sake because it has a right to exist Forests are valuable because they provide homes to countless organisms that all have the right to live We value things in two ways Things can have both instrumental and intrinsic value But different people emphasize different values Costa Rica paying to protect ecosystem services is an attempt to quantify their forests’ intrinsic value Environmental ethics pertains to people and the environment Environmental ethics = application of ethical standards to relationships between human and nonhuman entities Many questions raised in environmental ethics are hard to resolve: Should we save resources for future generations? Should humans ever drive other species to extinction? When is it OK to destroy a forest to create jobs? Is it OK for some communities to be exposed to more pollution? We have expanded our ethical consideration People have granted intrinsic value and ethical consideration to more and more people and things Including animals, communities, and nature Animal rights activists voice concern for animals that are hunted, raised in pens, or used for testing Rising economic prosperity broadens our ethical domain Science shows people are part of nature All organisms are interconnected Non-Western cultures often have broader ethical domains We have expanded our ethical consideration Anthropocentrism = belief that only humans have intrinsic value Biocentrism = belief that some nonhuman life has intrinsic value Ecocentrism = belief that whole ecological systems have value A holistic perspective that preserves connections Environmental ethics has ancient roots Christianity’s attitude toward the environment: anthropocentric hostility or stewardship? The Industrial Revolution increased consumption and pollution John Ruskin: people no longer appreciated nature Transcendentalism = philosophical movement asserting that nature is a manifestation of the divine People need to experience nature Ralph Waldo Emerson, Walt Whitman, Henry David Thoreau’s Walden Conservation and preservation arose with the 20th century Preservation ethic = view that unspoiled nature should be protected for its own intrinsic value John Muir had an ecocentric viewpoint He was a tireless advocate for wilderness preservation Conservation ethic = view that people should use natural resources wisely for the greatest good for the most people (the utilitarian standard) Gifford Pinchot had an anthropocentric viewpoint Aldo Leopold’s land ethic inspires many people Healthy ecological systems depend on protecting all parts Aldo Leopold applied ecological principles to land policy He believed the land ethic changes the role of people from conquerors of the land to citizens of it The land ethic can help guide decision making Environmental justice seeks equal treatment for all races and classes Environmental justice = the fair and equitable treatment of all people regarding environmental issues The poor and minorities have less information, power, and money They are also exposed to more pollution, hazards, and environmental degradation The gap between rich and poor continues to widen Environmental justice seeks equal treatment for all races and classes From 1948 to the 1960s, neither the U.S. government nor the mining industry provided Navajo uranium miners with information or protection The miners suffered health effects like lung cancer Low-income white residents of the Appalachian region have had their water polluted and environment damaged by mountaintop removals for coal mining The most negatively impacted after hurricane Katrina were those in poor, non-white communities Is there a trade-off between the economy and the environment? Friction occurs between ethical and economic impulses Some say protection costs too much money, interferes with progress, or causes job losses Others argue that environmental protection is good for the economy Is there a trade-off between the economy and the environment? Difference in view is often the result of thinking in the short term vs. the long term Traditional economic thought ignores or underestimates contributions of the environment to the economy Human economies depend on the environment Economics studies resource allocation Economics = the study of how people use resources to provide goods and services in the face of demand Most environmental and economic problems are linked Root oikos, meaning “household,” gave rise to both ecology and economics Economy = a social system that converts resources into: Goods: manufactured materials that are bought, and Services: work done for others as a form of business Several types of economies exist Subsistence economy = economy in which people get their daily needs directly from nature or their own production They do not purchase or trade products Capitalist market economy = economy in which buyers and sellers interact to determine prices and production of goods and services Several types of economies exist Centrally planned economy = economy in which the government determines how to allocate resources Mixed economy = economy in which governments intervene to some extent Most national economies are a balance of approaches Lack of balance can cause problems—unregulated financial practices caused the 2009 recession Economies rely on goods and services from the environment Economies receive inputs (resources) Process them Discharge outputs (waste) Traditional economics ignores the environment Resources are free and “limitless” Wastes are absorbed at no cost Economies rely on goods and services from the environment Natural resources are the materials and forces that sustain our lives (sun’s energy, water, trees, fossil fuels) Environmental systems naturally perform functions that support economic activities: Soil formation Pollination Water purification Nutrient cycling Climate regulation Waste treatment Economies rely on goods and services from the environment Economic activities affect and often degrade the environment and its ability to provide services Depleting natural resources, generating pollution Adam Smith proposed an “invisible hand” Classical economics = when people pursue economic self-interest in a competitive marketplace The market is guided by an “invisible hand” Society as a whole benefits Differing opinions exist about this pillar of free-market thought It is responsible for the gains in material wealth It is responsible for economic inequality between rich and poor It promotes environmental degradation Neoclassical economics considers supply, demand, costs, and benefits Market price is determined by consumer preferences Market price for a product reflects balance between Supply = amount offered at a given price Demand = amount people will buy at a given price The “right” quantities of a product are produced “Optimal” levels of pollution, resource use can be determined in the same way Neoclassical economics considers supply, demand, costs, and benefits Cost-benefit analysis = costs of a proposed action are compared to benefits that result from the action If benefits are greater than the costs: pursue the action Cost-benefit analysis is controversial: not all costs and benefits can be identified or defined It is easy to quantify value of bananas grown or cattle raised on land cleared of forest But hard to assess the cost of lost ecosystem services Neoclassical economics considers supply, demand, costs, and benefits Monetary benefits are overrepresented Analysis is biased in favor of economic development Biased against environmental protection Are resources infinite or substitutable? Neoclassical economics treats resources as substitutable and interchangeable A replacement resource will always be found Goods and services are treated as “free gifts of nature” Infinitely abundant, resilient, and substitutable Are resources infinite or substitutable? But Earth’s resources are limited Nonrenewable resources can be depleted Renewable resources (e.g., forests) can also be depleted Resources can become so polluted they are not usable Are costs and benefits internal? Neoclassical economics assumes that only the buyer and seller experience costs and benefits—they are “internal” External costs = costs borne by someone not involved in a transaction Health problems, resource depletion, property damage If prices ignore social, environmental, or economic costs of pollution and degradation, taxpayers pay for them Governments develop some environmental policies to deal with external costs Should we discount the future? Neoclassical economics assumes future events count less than present ones Discounting = short-term costs and benefits are more important than long-term costs and benefits Present conditions are more important than future ones Cutting trees now brings in more money than cutting them in the future would bring in Policymakers ignore long-term consequences of actions Puts costs of habitat degradation, resource depletion, pollution on to future generations Is all growth good? Neoclassical economics assumes that growth is good Economic growth = an increase in an economy’s production and consumption of goods It is necessary to maintain social order Promoting economic growth creates opportunities for poor to become wealthier But economic activity and true wealth are not the same Affluenza = material goods do not always bring contentment Runaway growth can destroy our economic system if resources are not limitless How sustainable is economic growth? All measures of economic activity are higher than they have ever been Economic growth comes from: Increased inputs (labor, natural resources) Economic development = improved efficiency of production (technology, ideas, equipment) Nonrenewable resources, and therefore inputs, are finite Technological advances are improving economic development We produce more goods with fewer resources How sustainable is economic growth? Cornucopians = those who believe human ingenuity and improved technology will allow continued economic growth Human innovation, technologies, and market forces increase access to resources and avoid depletion Cassandras = those who believe Earth’s natural capital is finite, so continuous growth is not sustainable Computer models predict economic collapse under current conditions as resources become scarce Environmental economists devise strategies for sustainability Environmental economics = field that maintains we must reduce our demand for resources and make their use more efficient to achieve sustainable growth Calls for reform of neoclassical economics Addresses external costs and discounting Environmental economists devise strategies for sustainability Ecological economics = field that maintains that civilizations cannot surpass environmental limitations; endless growth is not possible Natural systems operate in self renewing cycles Calls for revolution—abandon neoclassical economics Steady-state economies = economies that mirror natural ecological systems—they neither grow nor shrink We can assign monetary value to ecosystem goods and services Our society mistreats the very systems that sustain it The market ignores/undervalues ecosystem services Nonmarket values = values not included in the price of a good or service (e.g., ecological, cultural, spiritual) We can assign monetary value to ecosystem goods and services Contingent valuation = technique that uses surveys to determine how much people are willing to pay to protect or restore a resource Measures expressed preferences But since people do not really pay, they may overinflate values Researchers can find a value for a service revealed by actual behavior Includes time, money, effort people spend to travel to a location Measures actual costs of restoration, cleanup, etc. to restore lost functions We can assign monetary value to ecosystem goods and services Researchers calculated the global value of 17 major ecosystem services (water supply, recreation, raw materials, etc.) The global economic value of all ecosystem services equals $48 trillion More than the GDP of all nations combined Protecting certain areas gives 100 times more value than converting them to some extractive use We can measure progress with full cost accounting Gross Domestic Product (GDP) = the total monetary value of goods and services a nation produces Does not account for nonmarket values Does not express only desirable economic activity Pollution, oil spills, disasters, etc. increase GDP We can measure progress with full cost accounting Genuine Progress Indicator (GPI) = GDP alternative that differentiates between desirable and undesirable economic activity Positive contributions (e.g., volunteer work) not paid for with money are added to economic activity Negative impacts (crime, pollution) are subtracted In the United States, GDP has risen greatly, but GPI only slightly We can measure progress with full cost accounting Full cost accounting = attempts to monetize all costs and benefits (GPI is one example) Happy Planet Index divides number of happy years of life by ecological footprint Measures happiness per amount of resource input These indicators give a more accurate indication of a nation’s welfare Critics claim the valuation is too subjective Markets can fail Market failure = occurs when markets ignore the environment’s positive impacts or the negative effects of activities on the environment or people (external costs) Government intervention counters market failure Laws and regulations Tax harmful activities Economic incentives to promote fairness, conservation, and sustainability (e.g., pollution permits, pay landowners for ecosystem services) Ecolabeling helps address market failure Ecolabeling = labeling approach that tells consumers which brands use environmentally benign processes A powerful incentive for businesses to change Dolphin-safe tuna, organic food Socially responsible investing = investing in companies that have met criteria for environmental or social sustainability $3.7 trillion in 2012, 11% of all investments Businesses are responding to sustainability concerns Industries, businesses, and corporations make money by “greening” their operations Many find that reducing waste and conserving energy reduce costs and increase profits Industries donate to environmental groups, preserve land, etc. Manufacturers recycle, use recycled materials, cut energy use, reduce the use of toxic substances, etc. Thousands of local sustainable businesses have been started around the world Businesses are responding to sustainability concerns Any changes made by large companies will have far-reaching impacts Some of the world’s largest corporations have joined in: McDonald’s, Starbucks, Intel, Ford Motor Company, Toyota, IKEA, Dow, DuPont, BASF, IBM, Hewlett Packard, Nike, Wal-Mart Greenwashing = consumers can be misled into thinking companies are acting more sustainably than they are “Pure” bottled water may not be safer or better Corporate actions hinge on consumer behavior People must support sustainable economics Sustainable Development Sustainable development = the use of resources to satisfy current needs without compromising future availability of resources Development = the use of natural resources for economic advancement Making purposeful changes to enhance the quality of human life Some have viewed protecting the environment as being incompatible with development The poor suffer the most from environmental degradation Sustainable development involves environmental protection, economic well-being, and social equity Triple bottom line = sustainable solutions that meet the goals of: Environmental protection Economic advancement Social equity Humans must apply knowledge from the sciences to Limit environmental impacts Maintain functioning environmental systems Sustainable development is a global movement Millennium Development Goals = established by the United Nations as broad goals for global development: Eradicate extreme poverty and hunger Achieve universal primary education Promote gender equality and empower women Reduce child mortality Improve maternal health Combat HIV/AIDS, malaria, and other diseases Ensure environmental sustainability Develop a global partnership for development Conclusion Recent developments have brought economic approaches to bear on environmental protection and conservation Corporate sustainability, ecolabeling, new ways of measuring growth, valuation of ecosystem services Environmental ethics has expanded people’s ethical considerations Environmental justice Economic welfare can be enhanced without growth, increasing economic health and environmental quality Sustainable development seeks the triple bottom line QUESTION: Review An anthropocentric worldview would consider the impact of an action on humans only. animals only. plants only. all living things. all nonliving things. QUESTION: Review Which ethic holds that unspoiled nature should be protected for its own intrinsic value? Land ethic Preservation ethic Conservation ethic Deep ecology Biocentrism QUESTION: Review Which of the following is an ecosystem service? Water purification in wetlands Climate regulation in the atmosphere Nutrient cycling in ecosystems Waste treatment by bacteria All of the above are ecosystem services. QUESTION: Review Which is NOT an assumption of neoclassical economics that can lead to environmental degradation? Resources are unlimited. Long-term effects are downplayed. Costs and benefits are experienced by buyers, sellers, and the public. Growth is good. QUESTION: Review Which of the following statements would be spoken by an environmental economist? The current economic system is working well. The current economic system simply needs to be fine-tuned. The current economic system is broken and a new one needs to be developed. Economic systems never work. QUESTION: Interpreting Graphs and Data Market equilibrium, which sets the price of a product, is reached when supply exceeds demand. when demand exceeds supply. by demand when quantity is low and by supply when quantity is high. when supply equals demand. QUESTION: Interpreting Graphs and Data Which conclusion can you draw from this graph? GDP has not increased since 1950. Despite spending more money, our lives are not much better. We are spending less money, and our lives are much better. The GPI is not as accurate as GDP. QUESTION: Viewpoints Think of an issue in your community that could pit environmentalists against economic development. What do you think should prevail: environmental protection or economic development? Economic growth; we need the jobs Environmental protection; we need the environment Both; a compromise must be reached Whatever costs the taxpayers the least QUESTION: Viewpoints What entities do you include in your domain of ethical concern? Humans only Humans and pets Humans, pets, and other animals Humans, pets, other animals, and nature

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