Tackling the Problems

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Tackling the Problems

• Flow Chart
• Finish Graphing Assignment
• Finish Developed and Developing Countries.
• Tackling the Problems
• Our Main Environmental Problems

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Developed and Developing Countries.(Review from
last Week)

• 5 babies will be born in Canada.
• 60 babies will be born in the US.
• 244 babies will be born in China.
• 351 babies will be born in India.

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Developed and Developing Countries.(cont.)

• Since the mid 1800s, developing nations have
  accounted for most of the world population
  growth.
• More than 80 of the people living on Earth do
  not have adequate food, shelter or water
• Developed countries use up 75 of the resources
  used every year, yet they make up only about 20
  of the world's population

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Developed and Developing Countries.(cont.)

• Whats Your Consumption Factor? - New York Times
• http//earthtrends.wri.org/images/consumption_tren
  ds.jpg
• Energy Consumption Total energy consumption per
  capita

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Tackling the Problems

• Why are Environmental problems so complicated?
• difficult to see direct cause and effect
  relationships between individual human activities
  and specific environmental damage.
• The problems seem enormous.
• Preventing pollution is expensive, and cleaning
  up problems after the fact is even more
  expensive.

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Tackling the Problems (Success Stories)

1. Clean up of Lake Erie (since the 1970s).
2. Peregrine falcons nesting near the Bay of Fundy
   despite their dramatic decline due to the rampant
   use of the pesticide DDT.
3. Electrical utilities now promote energy
   conservation.
4. Emission controls and catalytic converters.

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Our Main Environmental Problems

• Main threats to the global environment
• Overpopulation
• Resource depletion
• Pollution (air, water and soil), global warming,
  ozone depletion and acid rain
• Reduction in biodiversity and extinction

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Our Main Environmental Problems Overpopulation

• Any increase in population directly affects the
  environment.
• The pollution of natural environments, declining
  energy reserves, reduced biodiversity and
  wildlife extinctions are all problems related to
  human population growth

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• YouTube - Human Population Growth