1. Human Impacts on Air Resources

2. Global Warming This is an increase in Earth’s average temps
Greenhouse effect is a natural phenomena, but global warming is not
Burning of fossil fuels is partly to cause for increase in CO2

4. Rising Temps
Studies indicate Earth’s mean surface temp has increased 0.5 degrees C in the last century
Could go up in next century
This could change wind and precip patterns
Others say we do not have records long enough to know

5. Glacier Near Greenland
1979
2005

7. Arctic Ice Sheet

9. Ozone Depletion
Ozone is a layer within the atmosphere that absorbs and filters out UV rays
Scientists figured out in the early 1970’s the CFC’c were harmful to ozone
In the mid-1980’s it was discovered that there was a hole over Antarctica
Happened because of human activity

11. Acid Precipitation This is precip with a pH less then 5.0
Forms when sulfur dioxide combines with moisture in the atmosphere sulfuric and nitric acid
Happens mostly in Midwest from coal burning plants

16. Reduction in Air Pollution

17. Global Leaders in Air Pollution

18. Pollution Solutions http://www.arb.ca.gov/html/brochure/50things.htm
Ethanol
Recycling