IPCC-er Jagadish Shukla has his hand on the pulse of reality.
From the Climategate 2.0 collection, Shukla writes,
… It is inconceivable that policymakers will be willing to make billion-and trillion-dollar decisions for adaptation to the projected regional climate change based on models that do not even describe and simulate the processes that are the building blocks of climate variability.
Let’s see… throw out the sun, gamma ray effects on clouds, axial tilt perterbations, the ADO and PDO cycles, Boyles Law (et al) regarding dissolved gases in the oceans, Hmmmmm… perhaps that just might, I say might account for some of the totally useless output from these models. But then again my degree is in Computer Science with a minor in Engineering, particularly thermodynamics… so what would I know?
See my post under “All models are wrong” for an explanation of the cooling effect of GHG molecules.