Causes and Impacts of Global Warming

Causes and Impacts of Global Warming

  • Submitted By: saro22
  • Date Submitted: 03/30/2010 8:22 AM
  • Category: Science
  • Words: 2416
  • Page: 10
  • Views: 1380

Global warming
Introduction
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Causes- human activities add excessive amounts of greenhouse gasses to atmosphere
Impacts of global warming
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Solutions- collaborative efforts may contribute to the reduction of global warming through adopting certain practices.
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The paper
Introduction
Burning natural gas, coal and oil —including gasoline for automobile engines—raises the level of carbon dioxide in the atmosphere.
Some farming practices and land-use changes increase the levels of methane and nitrous oxide.
Many factories produce long-lasting industrial gases that do not occur naturally, yet contribute significantly to the enhanced greenhouse effect and “global warming” that is currently under way.
Deforestation also contributes to global warming. Trees use carbon dioxide and give off oxygen in its place, which helps to create the optimal balance of gases in the atmosphere. As more forests are logged for timber or cut down to make way for farming, however, there are fewer trees to perform this critical function.
Population growth is another factor in global warming, because as more people use fossil fuels for heat, transportation and manufacturing the level of greenhouse gases continues to increase. As more farming occurs to feed millions of new people, more greenhouse gases enter the atmosphere.
During the entire 20th century, the average global temperature increased by about 0.6 degrees Celsius (slightly more than 1 degree Fahrenheit).
Using computer climate models, scientists estimate that by the year 2100 the average global temperature will increase by 1.4 degrees to 5.8 degrees Celsius...

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