Chapter 13 Environmental Problems - PowerPoint PPT Presentation

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Chapter 13 Environmental Problems

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Title: Chapter 13 Environmental Problems


1
Chapter 13Environmental Problems
2
Myth or Fact?
  • Environmental pollution did not become a problem
    until the 1960s and 1970s.
  • Environmental conditions deteriorated in the last
    half of the twentieth century.
  • It was not until the 1960s that serious attention
    was focused on the issue.
  • Whereas many conditions have deteriorated, there
    have also been significant improvements.

MYTH
FACT
3
Environmental Sociology
  • Ecology
  • Branch of biology that studies relationships
    between living organisms and environment
  • The environment
  • Refers to conditions and circumstances
    surrounding and affecting a particular group of
    living creatures
  • An ecosystem
  • A complex, interrelated network of life and
    non-life forms
  • Interact to produce an exchange of materials
  • Each ecosystem achieves a natural balance

4
Environmental Problems
  • The most severe environmental damage in the past
    century
  • The product of human beings
  • The social conditions that affect the impact that
    humans have on environment
  • Formula developed by biologists Paul and Ann
    Ehrlich
  • I P x A x T
  • Impact Population x Affluence x Technology

5
Social Sources of Environmental Problems
  • Population Growth
  • Affluence
  • Technology
  • Economic Growth
  • Cultural Values

6
Social Sources of Environmental
ProblemsPopulation Growth
  • Carrying capacity
  • Upper-size limit imposed on a population by its
    environmental resources
  • Cannot be permanently exceeded
  • Determining carrying capacity of an ecosystem
  • Complicated by what is considered socially
    acceptable
  • Some ecosystems have been made unlivable
  • When are there too many people for the earth to
    support?
  • Ecological footprint quiz

7
Social Sources of Environmental
ProblemsAffluence
  • Achieving material comfort and affluence
  • Consuming resources
  • Creating waste
  • Consumer products
  • List of typical lifestyle items
  • Other nations want to achieve our standard of
    living
  • The phenomenon of rising expectations
  • We may exceed carrying capacity of earth
  • If others achieve Western levels of affluence

8
Social Sources of Environmental
ProblemsTechnology
  • Two-edged sword
  • Positive aspects
  • Makes life more comfortable
  • Enables production of foods and medicines
  • Can help reduce environmental damage
  • Negative aspects
  • Short-term rewards without consideration of impact

9
Social Sources of Environmental
ProblemsEconomic Growth
  • If a nations population is growing
  • Economy must produce more to provide the same
    standard of living
  • Provides increasing levels of affluence
  • Capitalism stresses ideology of growth
  • Drive to expand
  • Find new markets
  • Worldwide pressures toward economic growth and
    competition
  • Corporations often ignore environmental damage as
    cost of doing business
  • Pressure for economic growth in less developed
    nations
  • Raising low standards of living
  • Controversy over some policies

10
Social Sources of Environmental
ProblemsCultural Values
  • Supports practices that damage the environment
  • Mastery
  • Religious beliefs that humans are superior
  • Mastery over the earth and its creatures
  • Progress
  • Peoples standard of living should keep rising
  • Individualism
  • Individual desires and achievements more
    important than collective accomplishments and
    goals
  • Environmental concerns often focus on what is
    good for the whole

11
The Social Construction of Environmental Problems
  • Process of identifying and defining environmental
    problems
  • Raising consciousness
  • Early environmental (conservation) movement
    (1890-1900s)
  • National Parks
  • Sierra Club, Audubon Society
  • Modern environmental movement (1960s)
  • Carsons Silent Spring, Ehrlichs The
    Population Bomb
  • Environmental Defense Fund, Greenpeace
  • Legislation (1970s)
  • Clean Air Act
  • Environmental Protection Agency (EPA)
  • Media coverage
  • Publicizing the problems
  • Convincing people of need to address

12
Santa Barbara
  • and the Modern
  • Environmental Movement

13
Santa Barbara Oil Spill
  • Union Oil platform
  • 6 miles out from Summerland
  • January 29, 1969
  • 11 days
  • 200,000 gallons of crude oil
  • 800 square miles of ocean
  • 35 miles of coastline
  • Renewable and nonrenewable resources
  • Declining biodiversity

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21
The Extent of Environmental Problems
  • Water Supply and Pollution
  • Solid and Toxic Wastes
  • Radioactive Wastes
  • Land Degradation
  • Declining Biodiversity
  • Air Pollution
  • Pesticides and Other Chemicals
  • Energy Resources

22
The Extent of Environmental Problems
  • Water Supply and Pollution
  • Acid rain
  • Eutrophication
  • Solid and Toxic Wastes
  • U.S. the worlds trashiest people
  • Residues of production, problematic to dispose
  • Radioactive Wastes
  • Lifespan of wastes
  • NIMBY (Not in My Back Yard) syndrome of disposal
  • Land Degradation
  • Desertification
  • Deforestation

23
Levels of Various Air Pollutants
24
Levels of Lead Emitted into the Air
25
Toxic Chemical Releases by Industry
26
Worst Hazardous Waste Sites
27
Municipal Garbage
28
The Extent of Environmental Problems
  • Declining Biodiversity
  • Loss of many species
  • Could be of use to humans, or necessary to
    support life
  • Air Pollution
  • Threats from various sources
  • Concern about greenhouse effect and global
    warming
  • Pesticides and Other Chemicals
  • Increase in synthetic organic chemical production
  • Longer lasting and less biodegradable
  • Energy Resources
  • Affluent nations use inordinate shares
  • Most existing forms of energy are finite

29
Energy Consumption Among Nations
30
Video Presentation
31
Future Prospects
  • Collective Action by Interest Groups
  • Environmental and grassroots groups
  • Moderating Economic Growth
  • Unrestrained capitalism is a threat
  • Government Regulation
  • Endangered Species Act
  • Environmental Partnerships
  • Stakeholders collaborate efforts

32
Future Prospects
  • Reduce, Reuse, Recycle
  • Consume less, reuse and recycle more
  • Renewable Energy Resources
  • Solar energy, wind, geothermal, biomass
  • International Cooperation
  • Kyoto Protocol
  • New Cultural Values and Social Institutions
  • Sustainability, deep ecology, eco-terrorism
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