February 13, 2013 at 8:10 am charleszeller: What you say maybe all good and fine if you want to consider that the main green house gas is H2O and not a trace gas such as CO2 that makes up a paltry .037-9% of the total atmosphere while H2O makes up at least .4% and this should not be difficult to get your head around if you consider that all of the H2O in the constant water cycle on earth, i.e. eva