I haven't posted much on this topic for a while, since I've more or less come to the conclusion that this is religion, not science and most people who want to believe it do NOT want to know any science that contradicts their views. And so it's shouting into a hurricane, and I've gotten pretty tired of it.
Byt Coyote Blog has a good series that discusses the theory and the data, and the mismatch between the claims and the observations. And he is using the IPCC's predictions and data.
Recommended, especially if you still like to shout into hurricanes.