Subject: (urth) PLAN[E]T ENGINEERING 101 Date: Tue, 26 Nov 2002 10:17:12 -0700 From: "Dan'l Danehy-Oakes"
Ahem. It seems to me that we can explain the difference in climate between=20 Green and Blue, without resorting to a radical difference in their=20 respective orbits ... for example, by invoking a difference in the=20 chemical composition of their atmospheres. Suppose that Green simply=20 has a very high percentage of "greenhouse gasses" -- including but=20 not necessarily limited to CO2? And that Blue has a relatively low=20 percentage thereof? Or put it in terms of albedo, and say that Blue's is higher than Green's, so that the same amount of incident solar raditation produces a higher degree of insolation. Will that not produce the -- relatively small; they're both "life zone" planets! --=20 difference in their average surface temperature?=20 Frustrated, --Blattid --