happer
stoat | August 29, 2011Clearly, everyone wants to have a long discussion about GW etc etc, and maybe I haven't provided a venue for this for a while. But I've now found an excuse, prompted by (or perhaps more accurately, simply ripping off) mt, who has looked at The Truth About Greenhouse Gases by William Happer.
mt says various wise things, and I too balk at the very first thing he says about climate, viz:
The argument starts something like this. CO2 levels have increased from about 270 ppm to 390 ppm over the past 150 years or so, and the earth has warmed by about 0.8 C during that time. Therefore the warming is…