Last September, I posted: Dr Evans:”Climate Models Are Violently At Odds With Reality”. This posting is a Dr Evans up-date of the September information. This time he adds a simple explanation of the central issue regarding CO2 caused global warming—will feedbacks from a doubling of atmospheric CO2 be positive or negative? The Warmers claim that a 1C increase due to doubling of atmospheric CO2 will really become a 3.3C increase because of positive feedback. We skeptics believe that the feedback will be negative and the warming will probably be in the range of 0.6C.
For those of you more inquisitive types, Dr Evans in his footnotes, gives more information and references to help you do some research of your own.