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Greenhouse effect: the phenomenon that certain trace gases (for example carbon dioxide or methane) enter the atmosphere and cause the surface temperature and the temperature of the lower level of the atmosphere to rise.
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The heat preservation effect produced due to lack of heat exchange between a closed apartment (such as a greenhouse, flower room) and the outside environment. It can be widely applied to the cultivation of seedlings and flowers.
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Kyoto Protocol: a protocol on the restriction of emissions of green-house gases which was signed by some parties of the third United Nations Framework Convention on Climate Change.