Now that looks silly, but a lot of confusion starts there especially when somebunnies blather about radiation exchange between two bodies at defined temperatures. It is, IEHO, a lot trickier than it looks.
Eli has been piddling, or at least trying to get the confused to think about this, over at Science of Doom.
While you are at it take a look over at the Weasel's, and then at this talk by Leif Svalgaard, interesting implications for all the solar cyclists, little ice age and medieval hot pot fans out there.
Tuesday, February 07, 2012