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Unit 1: Introduction Environmental Problems, Their Causes, and Sustainability •Rachel Carson was a scientist who wrote Silent Spring in 1962. •It addressed the growing use of pesticides (DDT) and their unpredicted effects on song birds. •Original users of pesticides did not know that the poisons used to kill insects would accumulate in other living things and kill them too. BIOACCUMULATION Themes Sustainability: A process can continue indefinitely without depleting resources used *no sacrifice to future generations* Stewardship: Caring for something that does not belong to you Science: Use the scientific method and question authority Ecosystem Capital: Essential goods and services like food, water, and fuel Policy and Politics: Human decisions determine what happens to the natural world Globalization: The interconnectedness of human activities, ideas, and cultures Environmental Science • Understand how natural world works • Understand how human systems interact with natural system • Accurately determine environmental problems • Develop and follow a sustainable relationship with natural world Lessons from a Small Island Easter Island (Rapa Nui) http://www.netaxs.com/~trance/rapa.ram Easter Island Home Page and Music http://www.netaxs.com/~trance/rapanui.html Map of Easter Island Area - 166 km2 In the 4th century A.D there were approximately 10,000 people living here Use of resources Natural Resources • Fresh water • Trees • Fish Brought by settlers • Chickens • Sweet potatoes • Taro • Yams Used for: • Building houses • Food • Clothing • Technology – Stone statues (moai) – Needed many trees to move the statues Moai • There are 887 moai on Easter Island •Average Height: 13.29 feet (4.05 meters) some are more than 20 feet (6 meters) •Average weight: 13.78 tons Dutch explorers arrive in 1772 • 600 people left • Constant war • Few of the natural resources left What happened! 4 Global trends: A. B. C. D. Population growth and economic development Decline of ecosystems Global atmospheric changes Loss of biodiversity A. Human population growth Note: •This graph is from 1999. •These predictions are based on a faster growth rate. •Carrying capacity is higher in this graph. • More than 6.6 billion people currently • We are adding 76 million people per year • increase pop → increase need for resources Different lifestyles have different demands on the environment Developed (industrialized) countries like America • hot running water • more than one car per family -VSDeveloping countries like Tanzania • hunting/gathering • Firewood for heat and cooking • 1 billion + people live in poverty B. Soil degradation Demand for food destroys the soil – erosion – minerals in soil are depleted – salinization – increased use of pesticides – overuse of fresh water B. Soil degradation Demand for food destroys the soil – erosion – minerals in soil are depleted – salinization – increased use of pesticides – overuse of fresh water D. Loss of Biodiversity • Habitat destruction leads to a loss of many species starting with the plants • exact # of species lost is unknown because not all species are identified • strong ecosystems need biodiversity • 1959-1980 25% of all prescription drugs from natural resources • Wild species keep domestic species vigorous • Aesthetics A sustainable future is possible • Nutrition levels and life expectancy are rising • Population growth rates are falling • It is cool to be “green” • YOU are taking this class Lessons from a Small Island Easter Island (Rapa Nui) http://www.netaxs.com/~trance/rapa.ram http://www.netaxs.com/~trance/rapanui.html Living in the environment Environmental Science • Interdisciplinary science – ecology,geology,chemistry, • politics,engineering,economics,ethics • Connections and interactions between humans and the rest of nature • Validity of data questioned – many variables Environmental Issues • • • • • • Population growth Increasing resource use Destruction and degradation of habitat Premature extinction Poverty Pollution Sustainability • Ability of a specified system to survive and function over a period of time Sustainable living • Meeting present needs without preventing future generations from meeting theirs Carrying capacity • Maximum number of organisms an environment can support over a specified period of time Growth • Linear – quantity increases by constant amount per unit of time • Exponential – quantity increases by a fixed percentage of the whole in a given time Doubling time • 70 / percentage of growth rate = doubling time in years • Example – human population growth • 1.28% per year • 216,000 per day • 9000 per hour Economic growth – Gross National Product-GNP • Market value in current dollars of all goods and services produced by a country • Per Capita GNP – GNP/Total population Economic growth – Gross Domestic Product-GDP • Market value in current dollars of all goods and services produced WITHIN a country for use during a year Developed nation • 1.2 billion (20%) - highly industrialized, 85% of world wealth and income, use 88% of world resources, generate 75% of waste US,Canada,Japan,Australia,New Zealand ,most of Europe Developing 4.9 billion, (80%), low to moderate industrialized, 15% of world wealth and income, use 12% of world resources Asia, Latin America, Africa P (population) X A (affluence) X T (technological impact/unit of use) = I (Environmental impact) Ecological footprint or environmental impact Amount of land needed to produce the resources needed by an average person in a country Resources Ecological – habitat, food,shelter EconomicRenewable Non renewable Potentially renewable Tragedy of the Commons- Garrett Hardin • Over use of common property • Clean air, open ocean and its fish,wild life species,publicly owned land, gases of lower atmosphere, space Globalization • Social, economic and environmental change that leads to an increasingly integrated world • economic, information and communication,environmental effects Pollution Threatens human health Natural – volcanoes Anthropogenic – human activities Solutions Prevention – REFUSE, REDUCE,REUSE,RECYCLE Clean up – temporary fix, removes from one part and adds to another,expensive to reduce to acceptable levels Rapid population growth Wasteful use of resources Poverty Failure to encourage earth sustaining economic development Failure to include overall economic cost Root causes Environmental Worldview PLANETARY MANAGEMENT or ANTHROPOCENTRIC- “we are in charge of nature, always more to use, all economic growth is good” (ANTHROPOCENTRIC) EARTH WISDOM –”nature for all of earth’s species, not always more to use,make a judgment call about economic growth International trade ofInformation Revolution and globalization goods increased Transnational corporations from 7,000 to 53,000 Phones –from 89 to 850 million Passenger kilometers – from 28 million to 2.6 trillion Infectious microbes transported Hunter gatherers – 12,000 years ago Agricultural revolution – 10,000-12,000Industrial revolution275 years ago Technological revolution – 50 years ago Cultural changes Hunting and Gathering Societies • nomadic, living in small bands, • population in balance with food supply – high infant mortality,life expectancy 30-40 yr. • 3 energy sources - sun, fire, muscle power Hunting and Gathering Societies • nomadic, living in small bands, • population in balance with food supply – high infant mortality,life expectancy 30-40 yr. • 3 energy sources - sun, fire, muscle power Effects and Environmental Impact • Urbanization and agricultural expansion, cut down forests, destroyed habitats, soil erosion and desertification • birth rate faster than deathpopulation increase Early Industrial societies(mid 1700’s) • wood used up - coal usage • steam generation • fossil fuel powered farm machineryless farmers needed- moved to cities Advanced Industrial societies (1914 ---) • • • • • increase in agricultural products lower infant mortality improved health increase in longevity net population increase Resource Conservation • 1903-Theodore Roosevelt, Pelican Island,Florida to save the Brown Pelican • 1905- Gifford Pinchot - US Forest Service • “resources should be saved to be used for the greatest good, for the greatest number, for the longest time” Moral / Aesthetic Nature Conservation • John Muir , Sierra Club • “fundamental right of organisms to exist for it’s own sake” US Environmental Movement - 1960’s • 1962- , Rachel Carson “Silent Spring”, threats of pollution and toxic chemicals • David Brower and Barry Commoner,Paul Ehrlich,Garret Hardin -relationship between population growth, resource use,pollution Events - Increased Awareness • • • • • • 1963 - air pollution in New York Laundry detergent in water 1969- Cuyahoga in Ohio Love Canal , New York pollution of Lake Erie Extinction -grizzly,bald eagle,whooping crane,falcon Environmental events- 1970’s • 1972-UN- Human development • 1973 - OPEC oil embargo • Roland and Molina - CFC’s cause ozone depletion • Carter creates Superfund to clean hazardous waste sites(Love Canal) • Three Mile Island Environmental events - 1980’s • 1981 - Ronald Reagan - sagebrush philosophy • 1986-Chernobyl disaster • 1987-Montreal Protocol - fade out CFC’s • Exxon Valdez disaster Environmental Events - 1990 • 1991-Persian Gulf war - protect oil • 1992 - UN Earth Summit in Rio de Janeiro, Brazil • 1994 - UN Conference on Population and Development, Cairo, Egypt. • 1995- US Congress,reduce environmental spending - vetoed by Clinton • 1997 - Kyoto- global warming Environmental Events - 1990 • 1991-Persian Gulf war - protect oil • 1992 - UN Earth Summit in Rio de Janeiro, Brazil • 1994 - UN Conference on Population and Development, Cairo, Egypt. • 1995- US Congress,reduce environmental spending - vetoed by Clinton • 1997 - Kyoto- global warming Environmental events - 2000 • Clinton protects large areas in national forests from roads and logging - designated as national monuments Sagebrush Revolution • remove most lands from federal ownership and turn over to States • great supporter - Ronald Reagan Environmental Revolution ….shift from • • pollution cleanup to prevention • waste disposal to waste reduction • species protection to habitat protection • increased resource use to conservation Economic System • social institution through which goods are produced, distributed and consumed to satisfy people’s needs and wants, EFFICIENTLY Types of capital • natural : earth’s natural processes • human : people’s physical and mental talents • manufacture : machinery, equipment, factories Market based economy • interaction of DEMAND and SUPPLY and PRICE • economists believe that an economic system based on private ownership without government interference is the best way to solve problems • Supply and demand curves intersect at market price equilibrium point Governments intervene to correct market failures………… • • • • • • • national security education economic safety net civil and property rights worker health protect natural capital manage public land resources High throughput economics • increase flow of materials and resources • end up in planetary sinks • air,soil,water,organisms Ecological economists (Herman Daly) • resources limited, no waste • encourage environmentally beneficial and sustainable forms of economic development • harmful environmental and health effects of production of goods should be included in price (full cost pricing Non – use value of natural resources/ ecological services • existence value • aesthetic value • bequest or opinion value Strategies to fulfill goals………. • monitor economic and environmental health /enforce laws • eco-labeling and certification • phase in subsidies/tax breaks for environmentally beneficial goals • tax shifting • reduce poverty Cost Benefit analysis • • • • • use uniform standards clearly state all assumptions used include estimates of ecological services estimate long-term/short benefits and costs summarize range of estimated costs and benefits Most things cost more than you think……………. • Market Price/ Direct Price does not include the Indirect or External costs of harm to environment or human health (hidden cost) • Ex. failure to include climate change in the prices of fossil fuels Reduction of poverty • GRAMEEN banks in Bangla Desh Sustainable Environmental Principles to make Policy • • • • • • • • • humility reversibility precautionary net energy prevention polluter pays public access and participation human rights environmental justice Global efforts to solve environmental problems………….. Major Worldviews……………… • Anthropocentric : human centered • Bio centric : life centered Planetary Management World View • human’s are the most important species, all others have instrumental value • 3 variations – no problem school, free market school , spaceship earth school Stewardship World View • ethical responsibility to be caring and responsible stewards Role of education in living more sustainably……….. • Natural capital matters • our threats to natural capital are immense and growing • ecological an climate change tipping points are irreversible and should never be crossed Live more simply and lightly on the earth • • • • • • • • learn and mimic how nature sustains itself do not degrade earth’s natural capital do not waste matter and energy resources protect biodiversity avoid climate changing activities maintain earth’s capacity for self repair repair ecological damage that we have caused leave the world in as good a condition as we found or better • passion for sustaining all life-lead toactions Sustainability Revolution during your lifetime………………. • • • • • • • biodiversity protection energy transformation commitment to eco-efficiency pollution prevention emphasis on sufficiency demographic equilibrium economic and political transformations Politics and Environmental Policy • Social Change in Democratic governments – Constitutional democracies designed to allow change in order to ensure stability www.shambala.org/images/ capitol.gif – Special interest groups compete to put pressure on • Environmental Policy in the U.S. – Lawmakers must first feel government officials to that the environmental issue advocate laws that favor should be addressed their cause or vice versa – Bills reviewed by several – Bargaining in government to committees in House and maintain status quo Senate – Government reacts to issues, – After law is passed, Congress not prevent them must appropriate funds Courts & Environmental Regulation • • Almost every environmental regulation is challenged in court by industry and/or environmental organization. Terms – Plaintiff – Defendant – Civil suit • Plaintiff seeks to collect damages for injuries to health or for economic losses – Class action suit • Filed by group on behalf of a larger number of citizens • Limitations in Lawsuits – Expense – Time – Permission – Abuse of system www.adelantesi.com/Archi ve/ gifs/law.gif – Environmental law is the fastest growing sector in American legal profession Influencing Environmental Policy • Solutions: (individuals affecting environmental policy) – Change comes form grassroots political movements – Ways to influence policies • Vote • Contribute money to candidates • Lobby, write, e-mail elected officials • Educate and persuade • Expose fraud, waste, and illegal activities • 3 Types of Leadership – Leading by example – Working within existing economic and political systems to bring about improvement – Challenging system as well as proposing and working for better solutions volusia.org/elections www.universitystar.com/ 00/10/19/voting.gif Environmental Groups www.camgreen.org.uk/ www.camgreen.org.uk/ www.purplepatch. com.au/ www.sierraclub.ca/ bc/education 1. Green Peace 2. Sierra Club 3. Environmental Defense Fund 4. National Audubon Society 5. World watch Institute 6. Wilderness Society • Mainstream Environmental Groups – Multi-million dollar organizations led by chief executive officers and a staff of experts – Active primarily on the national level – Work within political system (major forces in persuading Congress) – “Group of 10” – largest US agencies rely on corporate donations Grassroots Environmental Group • At 6000 grassroots citizen groups exist in the US • Grassroots movement for environmental justice – growing coalition to protect human and environmental rights • Very active on college campuses and public schools www.sa.rochester.edu/ grassroots/ • Basic Rules for Effective Political Action by Grassroots Organizations: – Have a full-time continuing organization – Limit # of targets and hit them hard – Organize for action – From alliances – Communicate your positions – Persuade and use positive reinforcement – Concentrate at state and local levels Anti- Environmental Movement • Goals – Since 1980, there is a massive campaign to weaken and repeal existing legislation • Lobbying in Washington, D.C. and state capitals • mayors and government officials unable to implement without government funding • Coalitions • Global trade agreement (GATT) • Tactics – Establish an enemy – Weaken and intimidate – Threaten or use violence – Influence public opinion – Falsify data – Divide and conquer – Exploit ignorance of public www.seattleglobaljustice.org/ Evaluating Claims • Are environmental threats exaggerated? – Some cases of regulatory overkill • Asbestos • Acid rain – Must evaluate laws and regulations – Passing laws in regards to certain chemical or species doesn’t improve the environment – Need an integrated and holistic approach – No confrontations • Whom should we believe? – Tough questions need to be posed on both sides – Citizens encouraged to identify with majority – Many complex issues require understanding of environmental issues www.nmsu.edu/~safety/images/ signs/sign_cautio... nadp.sws.uiuc.edu/isopleths/ maps1999/phfield.gif Improving US Political System • Government is unresponsive to citizens because… – Government officials get money from wealthy individuals and companies – Costs the average senator $3.9 million to get elected www.opc-marketing.com/ ind-fundraising.htm • Bureaucracies: – Most agencies become stagnant and are influenced by businesses – Federal and state agencies overlap their policies – A sunset law – terminates agency until reviewed www.ci.burien.wa.us/ Improving the Political System • Level the playing field for ordinary citizens – Allow them to sue violators – Award attorney fees – Allow them to sue govt officials – Raise fines for violators and punish more – Call for courts to regulate frivolous suits • Reducing the Crime – Robbery, assault, and shootings push people out of cities and into suburbs, clearing more land and wasting energy – Less willing to ride bikes, walk or use public transit – Use of lights, TVs, alarms to deter burglars www.aperfectworld.org/.../ government/police.gif Global Environmental Policy • Progress in international cooperation and policy • 1972 UN Conference in Human Environment in Stockholm, Sweden • 115 nations have agencies and over 215 international treaties have been signed • 1992 Rio Earth Summit • Met again in 1995 and found little improvement because 1992 agreements not binding • Global Forum – brought together 18, 000 people from 1400 NGOs from 178 countries www.philexport.ph/.../jun20/ newsfeatures.html Environmental Worldviews in Industrial Societies • Environmental Worldviews – Ways people think the world works, what they think their role in the world should be • Environmental Ethics – What people believe is right and wrong environmental behavior • Individual centered – atomistic • Earth centered – holistic • Human centered – anthropocentric • Life centered – Biocentric • Ecosystem centered – ecocentric General Types of Environmental Worldview www.cms.k12.nc.us/allschools/providence… Major Human- Centered Worldviews • Planetary Management Worldview – Humans are the most important and dominant species – Should manage the planet for own benefit – Others species have instrumental value • Basic beliefs – We are the most important and in charge of nature – There is always more – All economic growth is good – Success depends on how well we understand, control, and manage earth’s life-support systems for our benefit www.flagline.com/images/ novelty-earth.gif Human Centered Worldview • Schools of Thought – No problem school • Technology will solve all problems – Free-market school • Minimal government interference and regulation – Space-ship-earth view • Earth is a spaceship, a machine that we can understand and manage – Stewardship • Humans have responsibility and must treat earth as our guardian – Responsible Planetary Management • Want to mix economy, technology, and government intervention for self-interest www.campfireusaia.com/ qool.html Life/Environmental – Centered Worldviews • Managing the planet – Some feel that we may not be able to learn technology fast enough to save the earth – A free market would rely too much on resources – We don’t understand the earth mofep.conservation.state.mo.us/ overview/mofep4.gi • Biocentric &Ecocentric Worldviews – Inherent value of nature – Everything has a right to exist – Animal rights movement (species-centered worldview) – Earth-wisdom worldview • Nature exists for all species • There is not always more • Not all economic growth is beneficial • Success depends on willingness to cooperate with earth. More Worldviews • Are biocentrists antihuman/antireligious? – They feel that they are prohuman – They feel that they are helping the earth, which indirectly helps humans • Social Ecology Worldview – As long as we have an industrial society, we will be damaging the environment – This will cause decentralization for political and economic systems • Ecofeminist Worldview – Idea that being humancentered and androcentric (male-centered) is the problem with the environment) – By being male-dominant, we are destroying nature – Emphasize gentleness, caring, compassion, non-violence, cooperation, and love www.sopers.co.nz/ signs/signs.htm Ethical Guidelines for Earth • Ecosphere and Ecosystems – We should try to understand nature – When we must alter nature, we must avoid environmental harm • Species and Cultures – We should preserve genetic diversity – Avoid premature extinction of other species – Protect ecosystems • Individual Responsibility – Should not cause any suffering to our food sources – Leave the earth better than we found it – Use only what we have – Heals the wounds we have already caused newfarm.osu.edu/images/ crops.gif Earth Education • We should teach our children about our earth – – – – Respect life Understand earth Seek wisdom Evaluate consequences of lifestyles • Learning to Live Simple – Gandhi’s Philosophies • Voluntary simplicity • Earth provides enough, use minimal amounts • Transfer energy from material to non-material • We should learn to work with the earth – Learn to make our own area sustainable www.crawfordinternational.com/ cai_values_ethi.. Earth-Wisdom Revolution • Efficiency revolution to make the most of the earth • Pollution prevention • Sufficiency revolution – being sure that everyone has his or her basic needs • Demographic revolution – balance population growth • Seeing the world as a flow of matter and energy www.tij.co.jp/jcorp/ docs/program/ Economic Goods, Resources and Systems • Economy: a system of production, distribution, and consumption of economic goods (material items/ services that satisfy people’s wants) • Economic Resources: The kinds of capital that produce economic goods and services 1. Earth Capital/ Natural Resources 2. Manufactured Resources: items made from earth capital with help of human capital 3. Human Capital: people’s physical and mental talents Economic Systems Pure Command Economic System/ Pure Capitalism: • All economic decisions made by markets, in which buyers and sellers of economic goods freely interact without government or other interference • Depicted as a circular flow of economic goods and money between households and businesses operating essentially independently of the ecosphere. • Market equilibrium occurs when the quantity supplied equals the quantity demanded, and the price is no higher than the buyers are willing to pay and no lower than the sellers are willing accept. Centrally Planned Economy: • All economic systems made by the government • Government control and ownership of the means of production are most efficient and equitable way to produce, use, and distribute goods. All countries have mixed economic systems that fall somewhere in between pure market and pure command systems. Circular Flow of Money in Pure Market System Economic Growth and External Costs • Economic growth: an increase in the capacity of the economy to provides goods and services to people for final use • Gross Domestic Product (GDP): the market value of all goods and services produced by the economy within its borders for final use • Gross National Product: GDP plus net income from abroad • Real Per Capita GDP: the real GDP divided by the population • Ecologically Sustainable Development: occurs when the total human population size and resource use in the world are limited to a level that does not exceed the carrying capacity of the existing natural capital • GDP and GNP hide the negative effects on the ecosphere of producing many goods and services. They don’t include the depletion and degridation of natural resources or earth capital on which all economies depend. • Solution: Environmental and social indicators should be subtracted from the GDP/GNP to give a more realistic picture. Environmental Solutions Using Economics Pricing products using full cost: • Would close the gap between real and false prices by having prices tell the environmental truth • Cause business to pay the full cost of the environmental harm created Cost-Benefit Analyses: • Comparing estimated short term and long term costs with estimated benefits for a course of action. Government Regulations: • Phase in government subsides that that encourage earth-sustaining behavior and phase out current perverse subsides that encourage earth-degrading behavior Poverty • Poverty: the inability to meet one’s basic economic needs • Trickle-down hypothesis: a growing economy is the best way to help the poor. It enables more wealth to reach workers and provides greater tax revenues that can be used to help the poor. • Most of the time, however, this wealth does not trickle down, instead it flows up. Solutions to Reducing Poverty • Forgive the money that developing countries owe to developed nations • Increase nonmilitary aid to developing countries from developed countries • Shifted most international aid from large-scale to small-scale projects intended to benefit local communities of the poor • Encourage banks to make small loans to poor people wanting to increase their income • International lending agencies should be required to use a standard environmental and social impact analyses to evaluate any proposed development project Converting to Earth Sustaining Economies • Reward earth-sustaining o earthdegrading behavior • Use full-cost accounting to include the ecological value of natural resources in the market place • Use environmental and social indicators to measure progress toward sustainability • Use full-cost pricing to include external costs of goods and services • Replace taxes on income and profits with taxes on throughput of matter and energy • Use low discount rates for evaluating future worth of irreplaceable or vulnerable resources • Establish public utilities to manage and protect public lands and fisheries • Revoke the government-granted charters of the environmentally and socially irresponsible businesses • Make environmental concerns a key part of all trade agreements and of loans made by international lending agencies • Reduce waste of energy, water, and mineral resources • Preserve biodiversity • Reduce future ecological damage and repair past ecological damage • Reduce poverty • Slow population growth