It is a process that happens when a part of solar radiation reflected by the Earth's surface is absorbed by gases in the atmosphere. So the heat is retained and as consequence the global temperature will increase. The most dangerous are CFC's.
Climate changes refer to changes in global climate. These variations are relate to changes in temperature, precipitation and others. Such variations can change the weather characteristics according to rating didactic.
So we understand that climate change may be an effect of natural processes or due to human action.
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