1. Greenhouse Effect - Natural Heating of Earth’s surface by certain atmospheric gases

2. Greenhouse Gases Water Vapor H 2 0 Carbon Dioxide C0 2 Methane CH 4

3. Without the Greenhouse Effect the Earth would be too cold for human life

4. Greenhouse Effect

6. Greenhouse Gases  Carbon Dioxide  Methane  Nitrous Oxide  CFCs  Water Vapor

7. Without a Greenhouse Effect…  Problem Solved? –Earth would be 33 degrees Celsius cooler

8. Global Warming -enhanced greenhouse effect resulting in a rise in global temperatures

9. Possible Results of continued Global Warming

10. Polar Ice Caps May Melt

11. Sea Level May Rise

12. Deserts Could Spread

13. Frequency and Severity of Storms may Increase

14. Scientist Discrepancy - some argue rising temperatures are due to natural cycles

17. Causes for increasing C0 2

18. Causes for increasing C0 2 Automobiles Burning Fossil Fuels Deforestation

19. How we can reduce our effects

20. How we can reduce our effects Conserve Energy Recycle Car Pool

22. Ozone Depletion

23. Ozone Depletion - a thinning of the ozone layer

24. Ozone – O 3

25. Ozone – Blocks the harmful UV radiation from the sun

26. Ozone is made by chemical reactions involving UV light

27. Ozone Depletion is a major concern near the South Pole

29. Ozone Depletion is caused by increased levels of CFC’s in the atmosphere

31. “Ozone Hole” There is NO Hole It is a thinning of the ozone in the Polar Regions