The '''greenhouse effect''' refers to the retention of heat at the [[Earth]]'s surface and in the [[atmosphere]] which results when gas molecules reduce the escape of [[infrared radiation]] into [[outer space]]. The greenhouse effect was discovered in 1824 by [[Joseph Fourier]].
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The '''greenhouse effect''' refers to the retention of heat at the [[Earth]]'s surface and in the [[atmosphere]] which results when gas molecules reduce the escape of [[infrared radiation]] into [[outer space]]. It was discovered in 1824 by [[Joseph Fourier]].
These [[greenhouse gas]] molecules (principally [[water]], [[carbon dioxide]], and [[methane]])
These [[greenhouse gas]] molecules (principally [[water]], [[carbon dioxide]], and [[methane]])