Minor Thoughts from me to you

The answer climate sensitivity, diminishing curves, CO2 doubling, historical empirical data and more. Warren Meyer explains the whole thing with just two charts.

Coyote Blog: Problems With Catastrophic Global Warming Shown in Two Charts

To get a sensitivity of 3.0ºC, one has to assume that global warming due solely to man's CO2 (nothing else) would have to be 1.5ºC to date (where the red line intersects the current concentration of 380ppm). But no one, not the IPCC or anyone else, believes measured past warming has been anywhere near this high. So to believe the catastrophic man-made global warming case, you have to accept a sensitivity three or more times higher than historical empirical data would support. Rather than fighting against climate consensus, which is how we are so often portrayed, skeptics in fact have history and empirical data on our side. For me, this second chart is the smoking gun of climate skepticism. We have a lot of other issues -- measurement biases, problems with historical reconstructions, role of the sun, etc -- but this chart highlights the central problem -- that catastrophic warming forecasts make no sense based on the last 100+ years of actual data.