Models get cloud feedback wrong, but *only* by 70W/m2 (that’s 19 times larger than the CO2 effect) « JoNova: Science, carbon, climate and tax: "Yet another paper shows that the climate models have flaws, described as “gross” “severe” and “disturbing”. The direct effect of doubling CO2 is theoretically 3.7W per square meter. The feedbacks supposedly are 2 -3 times as strong (according to the IPCC). But some scientists are trying to figure out those feedbacks with models which have flaws in the order of 70W per square meter. (How do we find that signal in noise that’s up to 19 times larger?)"
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