Changes

:[[Computer model]]s suggest that a doubling of the concentration of the main greenhouse gas, carbon dioxide, may raise the [[average global temperature]] between 1 and 3° Celsius. However, the numeric equations of computer models do not accurately simulate the effects of a number of possible [[negative feedback]]s. For example, many of the models cannot properly simulate the negative effects that increased [[cloud cover]] would have on the [[radiation balance]] of a warmer Earth. Increasing the Earth's temperature would cause the [[ocean]]s to evaporate greater amounts of water, causing the atmosphere to become cloudier. These extra clouds would then reflect a greater proportion of the Sun's energy back to space reducing the amount of [[solar radiation]] absorbed by the atmosphere and the Earth's surface. With less solar energy being absorbed at the surface, the effects of an enhanced greenhouse effect may be counteracted.<ref>http://www.physicalgeography.net/fundamentals/7h.html</ref>

:[[Computer model]]s suggest that a doubling of the concentration of the main greenhouse gas, carbon dioxide, may raise the [[average global temperature]] between 1 and 3° Celsius. However, the numeric equations of computer models do not accurately simulate the effects of a number of possible [[negative feedback]]s. For example, many of the models cannot properly simulate the negative effects that increased [[cloud cover]] would have on the [[radiation balance]] of a warmer Earth. Increasing the Earth's temperature would cause the [[ocean]]s to evaporate greater amounts of water, causing the atmosphere to become cloudier. These extra clouds would then reflect a greater proportion of the Sun's energy back to space reducing the amount of [[solar radiation]] absorbed by the atmosphere and the Earth's surface. With less solar energy being absorbed at the surface, the effects of an enhanced greenhouse effect may be counteracted.<ref>http://www.physicalgeography.net/fundamentals/7h.html</ref>

==See also==

==See also==