>"Everybody knows what the temperature of the Earth would be if it were a black body." Not really true, or at least that black body temp is not useful in deter

>"Everybody knows what the temperature of the Earth would be if it were a black body." Not really true, or at least that black body temp is not useful in determining the "extra" warmth. The 255K number is the result of a "simple educational tool" that makes for "a good algebra lesson". I haven't seen what the correct number would be, but probably closer to the mean temperature of the moon ~200K. So there is some combination of atmospheric effects that raises mean temperature ~90K, rather than the usually quoted 33K. https://www.skepticalscience.com/postma-disproved-the-greenhouse-effect.htm https://www.skepticalscience.com/postma-disproved-the-greenh...