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climate change

Oct 17

Interplay of factors in climate change

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Gulf Stream water temperature

If a certain forcing (for example, solar variation) acts to change the climate, then there may be mechanisms that act to amplify or reduce the effects. These are called positive and negative feedbacks. As far as is known, the climate system is generally stable with respect to these feedbacks: positive feedbacks do not "run away". Part of the reason for this is the existence of a powerful negative feedback between temperature and emitted radiation: radiation increases as the fourth power of absolute temperature.

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Sep 22

Non-climate factors driving climate change

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Phanerozoic Carbon Dioxide Carbon dioxide variations during the last 500 million years

Current studies suggest that radiative forcing by greenhouse gases is the primary cause of global warming. Greenhouse gases are also important in understanding Earth's climate history. According to these studies, the greenhouse effect, which is the warming produced as greenhouse gases trap heat, plays a key role in regulating Earth's temperature.

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Sep 15

Climate change

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Vostok ice core

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Aug 25

Climate change

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Gambling

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