Climate models that predict future temps "do not begin to describe the real world that we live in"

"At the heart of the IPCC's (Intergovernmental Panel on Climate Change) work are computer models used to simulate global climate and weather. Any TV weatherman will tell you that predicting next week's local weather is an iffy proposition even with the latest first-alert-Doppler-whiz-bang-Vipir radars.

The IPCC's ever-more-confident and apocalyptic warnings rest on the near-impossible task of simulating with computers climate conditions for the whole planet and not for next week but for 50 to 100 years in the future. This, while science still struggles to explain exactly how clouds work.

World-renowned mathematician Freeman Dyson, who in his early years worked alongside Einstein and is now professor of physics at the Institute for Advanced Study at Princeton, had this to say about climate models: "The models solve the equations of fluid dynamics, and they do a very good job of describing the fluid motions of the atmosphere and the oceans. They do a very poor job of describing the clouds, the dust, the chemistry and the biology of fields and farms and forests. They do not begin to describe the real world that we live in."

http://www.realclearmarkets.com/articles/2009/07/28/a_primer_on_cap_and_trade_97329.html