GLOBAL WARMING

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GLOBAL WARMING
By Nicole
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What is Global Warming?

• Global warming is the increase of the Earths
  average surface temperature due to a build up of
  green house gases in the atmosphere.
• Carbon dioxide is the most common gas that causes
  global warming.
• As temperatures increase, the climate changes.

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Greenhouse Effect

• Sunlight enters the earths atmosphere and most
  of the light is reflected back by the earths
  surface.
• Greenhouse gases act as a shield trapping the
  suns energy and preventing it from leaving our
  atmosphere.
• The trapped sunlight causes the earth
  temperatures to rise and change our climate and
  weather.
• Twice in the past ten years, weve had the
  hottest temperatures ever recorded in the
  planets history.

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The Main Cause of Global Warming

• Increase of greenhouse gases in our atmosphere

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Other Causes

• Deforestation is responsible for 20-25 of all
  carbon emissions entering the atmosphere
• Burning of fossil fuels
• Population (more peoplemore cars, more food and
  more energy)

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Greenhouse Gases

• Carbon Dioxide (CO2)
• Fossil fuel burning, deforestation
• Methane (CH4)
• Rice cultivation, cattle sheep ranching, decay
  from landfills, mining
• Nitrous oxide (N2O)
• Industry and agriculture (fertilizers)

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Worldwide Carbon Emissions
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Carbon (109 metric tons)
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2
1
0
1750
1800
1850
1900
1950
2000
Year
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Carbon Emissions vs. Population
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Effects of Global Warming
Increased Temperature
Rising Sea Level
Habitat Damage and Species Affected
Changes in Water Supply
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Proof of Global Warming

• Alaska

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Colorado River

• Arizona

June 2002
Dec 2003
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Melting Glaciers Mt. Kilimanjaro
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Drought in Africa
Lake Faguibine
Lake Chad
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Problems Plants and Animals will face

• Temperatures of waters rise, so it is hard for
  fish to adapt this change.
• As the earth warms, plants will have to migrate
  at a rate of 1.6 km per year which is 5 times
  higher than normal migration rate.
• Polar bears are drowning because they are unable
  to swim the longer distances between land and the
  receding ice.

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Solutions

• Energy Alternatives

Solar Power
Hydro Power
Fuel-Efficiency
Wind Power
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Things you can do!

• Take shorter showers, heating water uses energy
• Turn off lights when you leave the room
• Use compact fluorescent bulbs
• Plant a tree
• Recycle
• Walk or carpool instead of driving
• Educate others

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Cartoons about Global Warming
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Any Questions?
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