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  • 1.2 Climate Change causes
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Climate Change causes

The earth system is a self-balanced system. However, climate changes all the time. We can divide climate change factors into two categories: natural factors and human factors.

    a)external changes(from extraterrestrial systems):
      1)Changes in Solar Output
      2)Changes in the Earth's Orbit
    b)internal changes(from ocean, atmosphere and land systems)
      1)changes in the concentrations of atmospheric gases
        -greenhouse effect
      2)natural activities on the earth:mountain building, continental drift, atmosphere/ocean heat exchange

  1)Enhancing the Greenhouse Effect
    -increase CO2 emissions through fossil fuel combustion, and so on.
  2)Land Use Change

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