Human Impacts on Air Resources

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Human Impacts on Air Resources
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Global Warming

• This is an increase in Earths 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

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Rising Temps

• Studies indicate Earths mean surface temp has
  increased 0.5 degrees C in the last century
• Could go up 1-3.5 in next century
• This could change wind and precip patterns
• Others say we do not have records long enough to
  know

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Glacier Near Greenland
1979
2005
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Arctic Ice Sheet
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Ozone Depletion

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

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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

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Reduction in Air Pollution
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Global Leaders in Air Pollution
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Pollution Solutions

• http//www.arb.ca.gov/html/brochure/50things.htm
• Ethanol
• Recycling