Sigh. I really shouldn’t fall for this stuff. But its so desperate, its worth pointing out. Ref is http://www.foxnews.com/story/0,2933,192544,00.html (I’ll avoid linking it in the hope you don’t upgrade their hit count). Milloy sez he is debunking two key myths of climate alarmism, including that the Earth’s atmosphere acts like a greenhouse and that reducing carbon dioxide (CO2) emission will avert significant temperature change.
The first bit is (just for once) scientifically correct (I should know, I had a 2-month revert war at wikipedia over it). The GHE doesn’t keep glasshouses warm. The lie is to pretend that this is climate alarmism. Its just a name. Its wrong, but so what?
Point 2 is equally silly. Milloys evidence? the relationship between CO2 and temperature is logarithmic in nature – that is, as CO2 increases in the atmosphere, it absorbs less and less additional energy to produce correspondingly less and less additional warming. So far, so good. But then… At some point, adding more CO2 to the atmosphere doesn’t significantly change atmospheric temperature. Well, no. The logarithmic curve keeps going up. And since (to first order) CO2 releases are exponential, the forcing increase in time is linear.
Milloy continues with more trash a doubling of atmospheric CO2 from pre-Industrial Revolution days (280 parts per million to 560 ppm), might increase global temperature from between 0.5 degrees Centigrade to 1.5 degrees Centigrade – that is, not much – as JA will tell you, climate sensitivity is 3 oC; values below 1.5 can be ruled out observationally.