eitzen13e.chapter4.lecture.ppt 193986
TRANSCRIPT
Social Problems, 13eD. Stanley EitzenMaxine Baca ZinnKelly Eitzen Smith
Chapter 4Threats to the Environment
Threats to the Environment
CH
AP
TE
R 4
Learning Objectives
4.1 Describe the nature and consequences of human-made threats to the
environment.
4.2 Explain the role of the United States in the global war on the environment.
4.3 Describe the long-range international implications of and alternative solutions
to threats to the environment.
4.1 - Worldwide Environmental Problems
• Degradation of the Land
• Destruction of the Tropical Rain Forests and Other Forms of Deforestation
• Environmental Pollution and Degradation
• Fossil Fuel Dependence and Environmental Degradation
• Climate Change
LO 4.1
LO 4.1 - Degradation of the Land
• 1 percent of Earth’s topsoil is lost each year due to: – Plowing of marginal lands – Growth of cities and urban sprawl– Overuse – Irrigation and erosion
LO 4.1 - Destruction of the Tropical Rain Forests and Other Forms of Deforestation
• Tropical rain forests cover about 7 percent of Earth’s dry land surface and house about half of all species on Earth.
• These rich forests are rapidly being destroyed through the process of deforestation.
The world’s tropical rain forest is losing an area about half
the size of Florida each year.
LO 4.1
LO 4.1 - Environmental Pollution and Degradation
• Chemical Pollution
• Solid Waste Pollution
• Water Pollution
• Radiation Pollution
• Air Pollution
A crop duster sprays pesticides on a local farm. This is one source of chemical food contamination.
LO 4.1
LO 4.1
The Hudson River in New York remains one of the most polluted rivers in the United States.
LO 4.1
Hanford was the world’s first full-scale nuclear reactor, built to produce plutonium for an atomic bomb during World War II.
LO 4.1
LO 4.1 - Fossil Fuel Dependence and Environmental Degradation
• The Industrial Revolution increased our reliance on fossil fuels– coal, oil, and natural gas
• Demand for energy will increase as developing nations industrialize and urbanize
The United States is the world’s number one consumer of oil products.
LO 4.1
LO 4.1 - Climate Change
• Greenhouse effect
• Some facts:– The earth has warmed by two degrees Fahrenheit in
the last century– 2010 was the hottest year on Earth
• The theory of global warming is controversial.• • Are humans to blame for the climate change?
LO 4.1 Video: Environment and Society: World Climate Change
http://media.pearsoncmg.com/ph/hss/SSA_SHARED_MEDIA_1/sociology/videos/Apcontent/world_climate_change.html
LO 4.1
Three social forces are disturbing Earth’s ecosystem. They are population increases, economic growth, and __________.
A. the demand for oil
B. declining food production
C. growing inequality between the rich and the poor
D. global diseases
LO 4.1
Three social forces are disturbing earth’s ecosystem. They are population increases, economic growth, and __________.
A. the demand for oil
B. declining food production
C. growing inequality between the rich and the poor
D. global diseases
LO 4.1
Global warming is now accepted as fact by politicians.
A. True
B. False
LO 4.1
Global warming is now accepted as fact by politicians.
A. True
B. False
4.2 - Sources of U.S. Environmental Problems
• Cultural Sources
• Structural Sources
LO 4.2 - Cultural Sources
1. Cornucopia view of nature
2. Faith in technology
3. Growth ethic
4. Materialism
5. Belief in individualism
LO 4.2 - Explorer Activity: The Environment and Technology: Problems of Place: The Southern Californian Sprawl
http://www.socialexplorer.com/pearson/plink.aspx?dest=http%3a%2f%2fwww.socialexplorer.com%2fSpiceMap%2f%3fv%3d9ed9abc36f0242c9
Please log into MySocLab with your username and password before accessing this link.
LO 4.2 - Structural Sources
1. Capitalist economy
2. Polity
3. Demographic patterns
4. System of stratification
Large cities like Los Angeles frequently have problems with air pollution.
LO 4.2
LO 4.2
Cultural sources of environmental problems are most closely tied to a society’s __________.
A. social class
B. institutions
C. beliefs and values
D. formal education
LO 4.2
Cultural sources of environmental problems are most closely tied to a society’s __________.
A. social class
B. institutions
C. beliefs and values
D. formal education
LO 4.2
The capitalist economic structure in the United States leads to abuse of the environment.
A. True
B. False
LO 4.2
The capitalist economic structure in the United States leads to abuse of the environment.
A. True
B. False
4.3 - Solutions to the Environmental Crises
• Individual/Local Solutions
• Societal-Level Solutions
• Global-Level Solutions
LO 4.3 - Individual/Local Solutions
• The needs of the group must take precedence over the wants of the individual.
• American values must change.
• Families can recycle, reduce energy use, and reduce driving.
LO 4.3 - Societal-Level Solutions
• Laws with serious penalties
• Federal regulations
• Energy conservation plans
LO 4.3 - Global-Level Solutions
• United Nations Climate Change Conference
• Emission reduction
LO 4.3
Solutions to environmental problems must be societal or global because__________.
A. the effects of problems do not have borders
B. individuals have done all they canC. only governments have the power
to change the environmentD. social structure, not culture, is the
main issue
LO 4.3
Solutions to environmental problems must be societal or global because__________.
A. the effects of problems do not have borders
B. individuals have done all they canC. only governments have the power to
change the environmentD. social structure, not culture, is the
main issue
LO 4.3
The individualistic nature of the United States is not related to our environmental problems.
A. True
B. False
LO 4.3
The individualistic nature of the United States is not related to our environmental problems.
A. True
B. False
LO 4.3 Question for Discussion
Explain the difference between structural and cultural sources of environmental problems and how these problems can be solved.