Changes

the retention of warmth at the [[Earth]]'s surface and in the [[atmosphere]]  

the retention of warmth at the [[Earth]]'s surface and in the [[atmosphere]]  

which results when gas molecules prevent the escape of [[infrared radiation]]

which results when gas molecules prevent the escape of [[infrared radiation]]

into [[outer space]].  

into [[outer space]]. The greenhouse effect 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]])