Environmental Studies Exam #2 (Test)

Climate change, science and diplomacy

  • Climate change basics

    • Weather vs Climate (short term s long term)

      • Weather: short term

        • Short term state of the atmosphere

        • Description of precipitation and temperature for one day

      • Climate: long term

        • Long term state of the atmosphere

        • Description of precipitation and temperature for a long period of time

    • Biospheric problems (how they are different)

    • The greenhouse effect (what is it)

  • What do we know

    • It is getting hotter

    • Greenhouse gas (GHG) emissions and temperature increases

    • Human influence + the causes of climate change

  • How do we know

    • Intergovernmental panel on climate change (IPCC)

      • Who are they?

      • What do they do?

      • What do they say? 


How is climate change different?


  • Types of environmental problems

    • Ecosystem problems

      • Visible as problems in particular ecosystems

      • Felt in specific areas

    • Biospheric problems

      • Climate change and ozone depletion are not scientifically related (they are both biospheric problems)

      • Global in nature

        • Impact all individuals, societies, ecosystems

      • Vast scope + long time horizon 

      • Require scientific expertise to study

      • Seem remote from our experiences

        • Require unprecedented level of cooperation (between countries)


The Greenhouse Effect


  • Some sunlight that hits the earth is reflected. Some becomes heat

  • CO2 and other gases in the atmosphere trap heat  

  • Natural vs Human Driven

    • Natural: more heat escapes into space

    • Human: less heat escapes into space


Global warming vs global climate change


  • What is climate change? 

    • Change in the state of the climate; changes in the men and/or the variability of its properties; persists for a an extended period of time

  • Causes of climate change

    • Internal variability in the climate systems; it happens over a very long period of time

    • Natural external causes; it happens over a long period of time

      • Example: volcanic smoke stops sunlight from reaching the earth

    • Human influence through greenhouse gases

  • It is getting hotter

    • The year 2023

      • Hottest year ever to be recorded

      • Hottest june, july, august, september, october, november, december

      • Temperature was 1.48 degrees celsius or 2.66 degrees fahrenheit above pre-industrial levels


GHG and hotter temperatures


  • CO2 concentrations in the atmosphere

    • Before 1979 → 337 ppm

    • Recent 2022 → 417 ppm

    • Feb 2023 → 421.62 ppm

    • Feb 2024 → 425.40 ppm

  • Carbon dioxide is the main heat trapping gas

  • Where are GHG emissions coming from?

    • World:

      • Energy supply

      • Industry

      • Agriculture, forestry, and land use

    • United States:

      • Transportation

      • Electric power

      • Industry 

      • Carbon dioxide emissions 79%


Human Influence


  • Human influence has warmed the climate at a rate that is unprecedented in at least the last 2000 years



Greenhouse gases


  • How much each human-caused greenhouse gas contributes to total emissions around the globe 

    • Carbon dioxide: 76%

    • Methane: 16%

    • Nitrous oxide: 6%

    • Fluorinated gases: 2%

  • The global warming potential (GWP) of human-generated greenhouse gases is a measure of how much heat each gas traps in the atmosphere, relative to carbon dioxide

  • Where are GHG emissions coming from

    • World:

      • Energy supply: 34%

      • Industry: 24%

      • Agriculture, forestry & land use: 22%

      • Transport: 15%

      • Buildings: 5.6%

    • United States:

      • Transportation: 28% 

      • Electric power: 25%

      • Industry: 23%

      • Commercial & Residential: 13%

      • Agriculture: 10%



Causes of Climate change


  • Generating power

  • Manufacturing goods

  • Powering buildings

  • Producing food

    • Cows; methane

  • Using transportation

  • Cutting down forests

  • Consuming too much


What is the IPCC?


  • Formed in 1988 by:

    • World Meteorological Organization

    • United Nations Environmental Program

  • Mission: 

    • Assess scientific, technical and socio-economic information relevant to understanding the scientific basis of human induced climate change, its potential impacts and options for adaptation and mitigation

  • The structure of the IPCC

    • Working group 1 

      • Looks at the science of climate change (CC)

    • Working group 2

      • Looks at the impacts and vulnerabilities

    • Working group 3

      • Looks at the mitigation of CC

    • Scientist, not politicians 

    • Not original research, summarize existing 

    • Peer review process

    • Multiple levels of review

  • The IPCC Process

    • Levels of review

      • 1st: Authors review scientific publications and write up a draft for review

      • 2nd: Expert reviewers supply comments which are taken into consideration

      • 3rd: New draft goes to both Governments and experts for further comments 

    • What is in the reports

      • WG1 Final report

        • Science of CC → 2,409 pages

      • WG2 Final report

        • Impacts → 3,068 pages

      • WG3 Final report

        • Mitigation → 1,991 pages

  • 97-99% of climatologists agree on 3 things

    • CC is happening 

    • Humans have caused it 

    • It will have significant impacts on all people, ecosystems and societies


What will CC mean + what can we do?


  • Effects/Impacts of CC

    • Largely negative 

    • 2 levels of effects/impacts

      • Physical impacts 

      • What it means to society 

  • Mitigation - reducing emissions

    • Reduce GHG emissions = reducing cc

    • Reduce cc = reducing effects/impacts

  • Adaptation - increasing resiliency 

    • It means we need more/better preparation 

    • More preparation = lessening the effects/impacts of CC

    • How can we increase resiliency 



Climate change effects


  • Hotter temperatures

  • More severe storms

  • Increasing drought

  • A warming, rising ocean 

  • Loss of species

  • Not enough food

  • More health risks 

  • Poverty and displacement 


Three dimensions of CC vulnerability 


  • Exposure

    • Identifying risks to CC

    • Example: coastlines eroding

  • Sensitivity 

    • How individuals, communities and nations are impacted by CC

    • Example: heat waves and isolation 

      • Mostly elderly 

  • Adaptive Capacity (resiliency)

    • Ability to accommodate and cope with CC impacts and stresses

    • Both physical and social conditions


Who are most vulnerable


  • Social class, race/ethnicity, gender, age, citizenship status, sexual orientation, physical ability, geography, location

  • Who are most vulnerable

    • Young (children) and old (elderly)

    • Poor, minorities, women

    • Less developed countries

    • Countries in the global south

    • Small island nations


Primary Issues/Areas CC will impact 


  • Food security

    • Crop yields are sensitive to small changes in water and temperature

    • Negative impacts are expected

  • Freshwater supplies

    • A question of too much or too little 

    • Early ice/snow melts, reduced stream flows, heavy or low precipitation

  • Extreme water events

    • Will increase dramatically → 2011 worst year cost 380 billion worldwide 

    • Both economic costs and social costs → hurricane Katrina

  • Human health

    • Heat stress (due to heat waves), fires and respiratory issues , transmissions of tropical diseases

    • Reduction in overall health and ability to do work

  • Land use and human settlements

    • Rising sea levels and more frequent wildfires

    • Coastal settlements where ½ of all people live are threatened 

      • US → Boston, New York City, Miami, New Orleans, Los Angeles

      • Global → Maldives, Tuvalu

  • Migration and climate refugees

    • At least 200n million displaced from their homes by 2050

    • Example: Hurricane Katrina 

  • Security and conflict

    • A "serious threat to global security"and thus to national security 

    • Regional conflicts as water, food and energy supplies dwindle


What can we do about climate change


  • Adaptation

    • The process of adjustment to actual or expected climate and its effects or minimizing the destruction/suffering that comes from climate change 

    • Examples:

      • Building seawalls, elevating infrastructure, or retreating from low-lying coastal areas

      • Reducing and recycling water use due to drought

      • Favoring drought-tolerant crops

      • Using prescribed fires to prevent uncontrollable wildfires

      • Disaster preparedness and management programs 

      • Alternative livelihood opportunities 

  • Mitigation

    • Human intervention to reduce the sources or enhance the sinks of greenhouse gases 

    • Different types of mitigation: 

      • Technology focused (techno-fixes): 

        • We can plant new trees (increase new trees)

        • We can use hybrids and energy efficient cars

        • We can replace fossil fuels with clean, renewable energy 

        • Upgrade buildings/devices

        • Produce food using less energy

      • People focused (changing behavior):

        • We can use less wood/paper products (save/protect old trees)

        • We can drive less, walk, carpool, and use public transportation

        • We can practice using less energy via conservation efforts

        • Turn off lights/energy/devices

        • Change diets/eat less beef

  • Examples:

  • Replacing fossil fuels like coal, oil and natural gas with clean renewable energy 

  • Replacing traditional internal-combustion vehicles with electric options 

  • Retrofitting old buildings via energy efficiency 

  • Planting trees and preserving forests so they can absorb and store more CO2

  • Recalibrating agriculture and livestock industries with changes in consumption patterns


Global response to climate change → Paris Agreement


  • Reduce emissions by 45% by 2030

  • Net zero emissions by 2050 (about 80%)


Common Pool Resources/Tragedy of the Commons


  • Common Pool Resources

    • Air, water, land, atmosphere 

      • Ozone depletion

      • Climate change

    • Open access: can’t exclude anyone from using them

    • Costs and benefits:

      • Benefits are individual gain

      • Costs are a joint/group loss

  • Pastureland with cows 

    • We each own 1 cow

      • 40 people = 40 cows

    • Costs and benefits

      • B: milk, cheese, meat

        • Individual gain = +1

      • C: soil depletion, methane

        • Joint/group loss = -1/40 

    • Everyone would add another cow

      • +1 benefit vs -1/40 costs

    • Tragedy of the commons

      • Overusing resources

      • Adding pollution

  • Overcoming Tragedy of the Commons

    • Set up management systems 

      • Government: formal/good of all

        • Autocratic or Democratic 

      • Privatization: split it/good of one 

      • Community: informal/good of all

    • What would we need to do? 

      • Monitoring 

      • Incentives (carrots)

      • Punishment (sticks)

      • Exchange information

      • Build trust/communication


Ozone depletion: The science 


  • Ozone = O3

    • Low level Ozone

      • Troposphere O3 = bad

      • Smog, air pollution, respiratory illness

    • High level Ozone

      • Stratosphere O3 = good

      • Absorb harmful UV rays coming from the sun

  • In effect

    • O3 in the upper atmosphere acts as a sunscreen for people and ecosystems 

  • The cause: CFCs 

    • Used in refrigerants and propellants

      • Refrigerator, air conditioning, aerosol sprays, styrofoam

    • How

      • CFCs go into the stratosphere and chloride breaks off → Cl

      • One Cl atom can eat up up to 100,000 molecules of O3

  • Impacts

    • Huma health: increased UV radiations reach the Earth surface that are harmful for human health

    • Crops growth: UV radiations also effect on the growth of crops

    • Phytoplankton growth: UV radiations inhibit the reproductive cycle of phytoplankton, single-celled organisms that make up the bottom of the food chain

    • Increased diseases: increased risk of skin cancer, infectious diseases and eye related problems


Ozone Depletion vs Climate Change


  • Success story

    • CFCs main cause

    • Science was certain 

    • 1.8 billion in sales (some political influence)

    • Industry produces CFCs (little connection to people)

    • HCFCs: ready, cheap, available substitute technology 

    • Little societal change

  • A work in progress

    • GHGs + Deforestation as causes

    • Science is certain 

    • 2.24 trillion in sales (big political influence)

    • Everyone produces GHGs (major connection to people)

    • Ready? Cheap? Available? 

    • Societal change will be needed


Who is responsible for GHGs emissions?


  • Overall emissions

    • #1 China

    • #2 U.S.

    • #3 India 

  • Emissions per person 

    • #1 U.S. + Saudi Arabia

    • Canada, Australia, S. Korea

  • Historically 

    • #1 U.S. 

    • #2 China

    • Russia, Germany, U.K.


Climate change negotiations → Themes


  • The Ambition Gap (2 levels) 

    • Emissions → gap between emission reduction goals and current action

      • How much do we reduce emissions and by when?

    • Finance → gap between money needed for current mitigation and adaptation and current spending 

  • Keep it in the ground

    • We cannot burn all of the fossil fuels we currently have

    • We need to keep 82% of coal, 49% of natural gas and 33% of oil in the ground to avoid going over 2°C

  • Damage/Losses

    • Mechanism to provide compensation for repairable or permanent loss due to climate-induced disasters and slow onset sea rise

  • Common but differentiated responsibilities 

    • Different countries have different situations/realities

    • Different expectations on what and how much they can do 

  • Mitigation and adaptation

    • Focus was only on mitigation, now it has switched to both 

    • How should we split our money/efforts?





The Paris Agreement


  • Temperatures:

    • Keep warming below 2°C

    • Continue efforts to to limit the rise in temperatures to 1.5°C

  • Financing:

    • Rich countries must provide $100 billion from 2020, as a “floor”

    • Amount to be updated by 2025

  • Specialization:

    • Developed countries must continue to take the lead in the reduction of GHGs

    • Developing nations are encouraged to enhance their efforts and move over time cuts 

  • Emissions goals:

    • Aim for GHGs emissions to peak asap

    • From 2050 → rapid reductions to achieve a balance between emissions from human activity and the amount that can be captured by sinks

  • Burden sharing:

    • Developed countries must provide financial resources to help developing countries

    • Other countries are invited to provide support on a voluntary basis

  • Review mechanism:

    • A review every five years. First mandatory review is in 2025

    • Each review will show an improvement compared with the previous period

  • Climate-related losses:

    • Vulnerable countries have won recognition of the need for averting, minimizing and addressing losses suffered due to climate change

 

Globalization and Growth


  • Globalization: the spread of the flow of financial products, goods, technology, information, and jobs across national borders and cultures

    • We see it every day in the things we buy, the things we eat, the places we go, the news we get

  • China is the world’s manufacturing superpower

  • Growth in everything:

    • Economy 

    • Population 

    • Technology 

    • Food production

    • GHGs emissions

    • Human footprint 

      • Air, water, soil, chemicals pollution, biodiversity loss

    • Inequality 

      • Between and within countries



Perspective #1 → Neoliberalism


  • Economic focused

    • Self-interest/Markets is the way to go

    • Free market is the most important thing

    • No restrictions on trade/markets 

    • Trust in markets

  •  Goes against economic nationalism 

    • Protecting your economy from other nations → tariffs, embargos, taxes

    • This is the best for everyone

      • Trade ↑,  production↑, economic growth ↑, world economy ↑

  • Who is involved:

    • World Bank

    • IMF (International Monetary Fund)

    • TNCs (Transnational Corporations)

  • Very influential

  • Contradictions and criticisms:

    • Size and power of TNCs (some are bigger than countries)

    • The rise of civil society 

      • NGOs and INGOs


Perspective #2 → world systems/dependency theory 


  • Historical/Power focused

    • Historical legacy of colonialism 

    • Relationship between MDCs and LDCs

      • MDCs control LDCs 

    • From military power to economic power 

      • The system of trade favors MDCs

  • Goes against Neoliberalism

  • Trade between countries 

    • Unequal system

      • Helps MDCs but hurts LDCs

  • How does it happen?

    • A= North/Rich/MDCs/Core

      • Supplies money and technology

    • B= South/Poor/LDCs/Periphery

      • Has raw materials and labor 

    • A keeps B underdeveloped 

    • TNCs and IMF factor into this 

  • Not very influential 

    • Makes rich/MDCs look bad

    • Implies there is no hope for LDCs/poor


Globalization and Social Inequality 


  • Economic inequality

    • Income vs Wealth 

      • I: how much you earn; salary/income

      • W: all of your assets; income, savings, stocks, bonds, retirement, car, house, land

  • Growing inequality 

    • Between and within countries

    • U.S. example:

      • CEO vs Worker salary

        • 1970 → 20x greater

        • 2011 → 230x greater

      • Most unequal income distribution of any developed country 

  • Racial and ethnic inequality

    • African americans, latinos, native americans 

  • All groups experience:

    • Lower income and wealth

    • Higher poverty 

    • Higher unemployment

  • Environmental injustice

    • Poor/minorities are more likely to be exposed to health and environmental hazards

    • Research:

      • Air pollution

      • Siting of LULUs 

        • Landfills, chemical plants, incinerators, toxic wastes, disposal sites #1

      • Race matters more than class 

  • Global inequality

    • Growing gap

    • Focus on women 

  • Champagne wealth 

    • Income and wealth disparity 

    • Leads to consumption gap between people and countries

  • Champagne glass of income inequality 

    • The richest (10%) receive 52%

    • The middle (40%) receive 40%

    • The poorest (50%) receive 8%


Sustainability and sustainable development 


  • What is sustainability?

    • Ecological/Enviro concept

    • Popular concept 

  • It means something different to everyone 

    • Environmentalists

    • Economists

  • The 3 E’s of education for sustainability

    • Environment 

    • Economy

    • Equity 


Growth vs Development 


  • Growth

    • Quantitative → to get bigger 

    • Easy to see/measure

    • Not always a good thing

  • Development 

    • Qualitative → to get different

    • Difficult to see/measure

    • Improvement/Progress

  • Development is beyond growth


Sustainable development


  • Key elements

    • Focus on needs not wants

    • Focus on the present

      • Intra-generational equity 

      • Needs of today/help the poor

    • Focus on the future 

      • Intra-generational equity

      • Needs of tomorrow/help the environment 


Perspective #1 → limits to growth (LG)


  • Outbreak/Crash view

    • Pessimistic view of the current path 

    • Created in the 1970s

      • We are on a collision course with the Earth’s carrying capacity 

      • Too many people 

      • We consume too much and using too many resources

      • We are putting out too much pollution

    • Growth will be followed by a crash 

  • Evidence

    • Led to I=PxAxT model (are these things equal)

    • LG: focus on the A part 

    • Led to ecological footprint model 

      • Estimate our impact on the Earth

      • Individuals, nations, world

    • Stats/Research support this view

    • Favored by ecologists, ecological economists 

  • Criticisms 

    • Environmental apocalypse? 

      • Has not happened so far

      • They have been wrong before 

    • No set/fixed/absolute limits 

      • We always push the limits out

    • Human ingenuity and technology 


Perspective #2 → Ecological modernization (EM)


  • Optimistic view of the current path 

    • We have problems, but this is just a phase

    • Economic prosperity/growth and environmental protection can go together 

    • Focus on green technologies + efficiency

      • Cleaner/Leaner economic growth 

    • Growth comes first, then we worry about the environment 

  • Evidence

    • Environmental Kuznets Curve

      • Shows how countries move from industrial to service economies

      • Reduction of some pollution metrics in MDCs (cleaner air/water)

    • Not as much stats/evidence

    • Favored by business interests and environmental economists 

  • Criticisms

    • Has not played out in the real world 

    • Does not account for globalization

      • Focus is on nations, not global

      • Environmental damages get shifted from MDCs to LDCs

    • Focus on efficiency but not total resource consumption


Pizza Example 


  • Scenario:

    • 4 people have ordered 1 pizza

    • 2 slices for each

    • 2 more people show up

    • 3 possible solutions

      • Tough love?

        • No pizza for them

      • Order another pizza?

        • Ecological modernization solution 

        • We can always order another pizza

        • We all get more pizza

      • Share the pizza?

        • Limits to growth solution 

        • In a world of limited resources we cannot always order more pizza


LG vs EM → Understanding this controversy 


  • Which one is right?

    • LG: has more/better evidence

    • EM: evidence is some examples in some MDCs

  • What would each mean for sustainability?

    • LG: focus on development 

      • Implies lots of changes

    • EM: keep focusing on growth

      • Implies less change 

  • Overall issues

    • Problems with LG → Prescriptions 

      • What would it mean?

      • People, societies, countries

      • Who wants to share/live with less?

    • Problems with EM → Promises 

      • Can it happen? 

      • When will it happen?


Sustainable consumption → what would it mean?


  • Treadmill of consumption 

    • Today: consumerist culture 

  • EM can help

    • Today: better goods/more efficient 

    • EM is not enough 

  • LG can help 

    • Tomorrow: voluntary simplicity 

    • Movement to consume less 

  • Voluntary simplicity 

    • Focus less on giving up things 

    • Focus more on gaining 

      • Gain → time for leisure, fun, friends, hobbies, less stress

    • Stress vs Contentment

      • Do we own things or do things own us?


Growth, well-being and happiness 


  • What does research show?

    • No correlation between economic growth/affluence and well being/happiness above a certain amount

      • It actually goes down

      • U.S. adults most happy in 1957

    • Happiest countries have less inequality between people 

    • Happy planet index

      • Life expectancy

      • Life satisfaction 

      • Ecological footprint

    • Costa Rica was #1

    • United States was #114


A sustainable society would…


  • Work to conserve and restore its biological base

    • Soil, forests, freshwater bodies, etc

  • Reduce population growth and stabilize it 

  • Phase out the use of fossil fuels and shift to renewable energy sources 

  • Work to become efficient → both economically and environmentally efficient 

    • Products, buildings, materials

  • Have social forms compatible with this framework 

    • Work-life balance → work less but more jobs

  • Have cultural beliefs and values that support this framework 

    • Changing from materialistic culture

    • Stronger human connections 

  • Enhance its adaptive capacity to be resilient 

    • Be ready and adaptable to change/shocks 

  • Have greater cooperation between people, societies, countries for global sustainability 

    • A world of sustainable societies 

    • National/Global balance via treaties 


Society, agency and structure 


  • Some points about society 

    • Society is a process and it is forever changing 

    • Change largely comes from within → self-transformation 

    • The motor of change is human agency → people as individuals and in groups

  • Agency and structure 

    • The power we have 

      • Each of us in an agent of change 

      • By ourselves and in groups 

      • We can all promote change 

    • But…

      • We act within structures and systems that can either limit, constrain, or facilitate the change we want to make 

    • Structures can be agents of change 

      • Social systems, communities, organizations, cultures, social institutions (corporations, government, etc)

    • How do we get change?

      • The interaction of agents and structures

  • Reciprocal relationship 

    • Agents work within systems 

      • Agents can try to transform 

    • Systems influence agents 

      • Can constrain them, limit them

  • PRAXIS

    • This is when change agents and their interactions with established structures results in real transforming change 


Sustainability and time horizons 


  • Short term vs Long term 

    • Agents + structure with a short term focus and individual mindset will shift the costs of unsustainability into the future 

    • Agents + structures with a long term focus and society mindset will delay benefits today for the future collective good of all 

  • Sustainability = long term


Paris Agreement and the 2°C dilemma 


  • Above 2°C

    • Catastrophic impacts predicted

    • Goal is “well below” 2°C

    • What does this mean? 

      • Signal to fossil fuel industry

  • Stranded assets 

    • Oil tankers, natural gas tankers, coal power plants, natural gas plants, pipelines, oil and natural gas rigs/platforms, gas stations tanks, etc


What is an economic system?


  • An economic system produces and distributes goods and services by using natural, human, and manufactured resources. In a pure free market system, buyers and sellers interact without any government or other interference




Problems with markets


  • Assumptions: 

    • Interaction of buyers and sellers without any interference is the way to go

    • All buyers and sellers have perfect information

    • All goods are the same/of equal value

    • The costs and benefits of all market transactions are internalized —> between the buyer and the seller

  • Market failures

    • Externalities 

      • All costs are not internalized

    • Public goods

      • Not all goods are the same

    • Unequal information

      • Among buyers and sellers

    • Unequal market power

      • Monopolies as an example

  • Market externalities

    • Externalities are costs or benefits arising from an economic activity that affect somebody other than the people engaged in the economic activity – they are not fully reflected in the price of the good/economic activity 



Ecological vs Environmental Economics


  • Ecological economics:

    • Subset of the environment. It holds all we need to survive. The economy must obey the natural laws that govern the biosphere 

    • Radical → need to reduce scale, efficiency of resource use, conservation of resources 

    • Non-market values of social/ecological benefits

    • Redistribution of wealth/resources → fairness/equity

    • Strong sustainability 

    • Ecological tax reform 

      • Don’t tax good things → income

      • Tax bad things → pollution

    • Fits with limits to growth 

    • Goal: no longer focused on growth, focus on development

    • Genuine Progress Indicator (GPI)

      • Social, economic and environmental indicators

    • Ecological economics = focus on GPI 

      • Growth of human well-being

      • Three types of wealth:

        • Economic 

        • Environmental

        • Social 

  • Environmental economics:

    • We have complete control over the environment and we prioritize economic health in decision making 

    • Reform → fix the existing system 

    • Tries to give an economic valuation of ecosystems good/services

    • Tries to internalize externalities

    • Weak sustainability 

    • Fits with ecological modernization 

    • Goal: still growth, but cleaner growth

    • Gross National Product (GNP): an estimate of the total value of all the goods and services produced by a country in a given period

    • Growth of production

      • Economic growth = GNP

      • Focus on one kind of wealth: economic 


GNP/GDP vs GPI 


  • GNP

    • Only looks at economy

    • When economy ↑, GNP ↑

  •  GPI 

    • Looks at economy, environment and social indicators

    • When economy ↑, GPI can ↓ if enviro and social drop

  • Example:

    • BP/DeepWater Horizon Oil Spill

      • Worst environmental disaster in the U.S.

      • Over 200 million gallons of oil spilled into the Gulf of Mexico

      • GNP: this is positive; BP paid over $65 billion for cleanup and lawsuits

      • GPI: this is negative due to the environmental costs involved


Transforming markets: Green Taxes


  • Shifting taxes

    • Tax bad things; like CO2, pollution

    • Do not tax good things; like income, savings

  • Things to keep in mind

    • People do not like taxes 

      • No one wants more taxes - shift them

    • Needs to be done incrementally over time - at least 10 years

    • Cannot be done to increase government revenue 

      • Goal is to be revenue neutral



Transforming markets: Green Consumption


  • Buying green → what we would need

    • People would need to have more information on the goods they buy 

    • People would need to be willing to spend more for “green goods”

    • Government would need to support this

  • Limits on buying green 

    • Green consumption vs none 

      • Consumption is still a problem 

    • Rebound effect 

      • We use energy/money savings for other things 

    • Focus is 100% on people’s behavior 

      • Individuals are problem/solution

      • Systems play a large role

      • We still need collective action 

    • Greenwashing

      • Companies often mislead consumers that they are environmental friendly 


Changing the way we eat: organic food sales in the U.S.


  • From 2005 to 2021

    • 15 billion to 58 billion

  • Biggest jump in 2020

    • 12% increase during Covid

  • Still small percentage of sales

    • About 5% of all food

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