Global Warming

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Global Warming

  1. 1. Introduction of Global Warming Annie & Evelyn
  2. 2. Outline • Movie clip • What is global warming? • Characteristics of three major greenhouse gases • Abnormal temperature sine 1980
  3. 3. What is Global Warming?
  4. 4. What is Global Warming?
  5. 5. What is Global Warming? • Global warming refers to an average increase in the Earth's temperature, which in turn causes changes in climate. This temperature rise is caused by the Greenhouse effect -- a necessary phenomenon that keeps all Earth's heat from escaping to the outer atmosphere.
  6. 6. What is Global Warming? • Global warming refers to an average increase in the Earth's temperature, which in turn causes changes in climate. This temperature rise is caused by the Greenhouse effect -- a necessary phenomenon that keeps all Earth's heat from escaping to the outer atmosphere. • Without the natural greenhouse effect it is certain that life on Earth would be difficult to sustain. However, too many greenhouse gases in Earth's atmosphere would lead to changes in rainfall patterns, a rise in sea level, and a wide range of negative impacts on plants, wildlife, and humans.
  7. 7. Characteristics of three major greenhouse gases
  8. 8. Characteristics of three major greenhouse gases
  9. 9. Abnormal Temperature Rise since 1980 http://www.seed.slb.com/en/scictr/watch/climate_change/change.htm
  10. 10. Start saving our earth from today! http://www.carbonfootprint.com/minimisecfp.html http://actonco2.direct.gov.uk/index.html
  11. 11. “ Each of us is a cause of global warming, but each of us can become part of the solution,” said Al Gore, 2007 Nobel Peace Prize winner.

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