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The global temperature is determined by:
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How much solar energy comes in?
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è affected by Earth’s obital parameters
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è external forcing to the climate system (discussed in Weeks 7 and 8)
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How strong the greenhouse effect is in trapping terrestrial energy?
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è affected by the composition of the atmosphere
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è (1) anthropogenic impacts on the climate system (discussed
in Weeks 9)
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(2) internal interactions among the atmosphere, oceans,
and land change
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global distribution and amounts of clouds and water vapor
concentration.
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è related to the global water and biogeochemical cycle
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