1. Chapter 19 The Human Impact
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2. Global Changes Acid Rain:
sulfur in the atmosphere combines with water vapor to produce sulfuric
acid rain that falls to the Earth
Kills trees and all
life in fresh water
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3. Causes: Burning coal for energy
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4. destruction of our ozone layer due to CFCs in our atmosphere
2. The Ozone Hole:
destruction of our ozone layer due to CFCs in our atmosphere
Causes: aerosols, refrigerators
and air conditioners
CFCs=
chlorofluorocarbons
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5. Image from: http://thewe.cc/weplanet/poles/antarcti/ozone.html

6. 3. Global Warming
Increasing the Earth’s temperatures due to the trapping of heat in
our atmosphere
Causes: an increase in greenhouse gasses - CO2 (carbon dioxide)
CH4 (methane)
H2O (water)
produced by burning
oil (gasoline)
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7. Image from: http://oregonstate.edu/orb/terms?title=g

8. II. Ecosystem Damage Chemical Pollution air, water, ground, solid
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9. Mexico City Air Pollution
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10. Causes: habitat loss, overhunting
Extinction of Species
Causes: habitat loss, overhunting
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11. Loss of Topsoil Causes: over farming logging
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12. 6.4 billion and doubling every 40 yrs
Human Population
6.4 billion and doubling every 40 yrs
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13. Biomagnification:
The increase in concentration of a substance as it moves through the food chain
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14. Pesticide Count 10
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Wheat

15. Pesticide Count
100
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16. Pesticide Count
1000
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17. Pesticide Count
10,000
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18. Solving Environmental Problems
Reduce what you consume and emit
Reuse what you can
Recycle what you can
Repair damaged ecosystems

19. Boycott: refuse to buy or support products or organizations
Gold
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Diamonds
Shark

20. Habitat Restoration Rebuild creek sides Rebuild sand dunes
Rebuild reef systems
Replant forests
Remove dams
Remove development
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Recycle Everything!
Food wastes
Batteries
Paper/cardboard
Plastic/metals
Yard wastes

21. One person army
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