/sci/ - Science & Math

http://www.youtube.com/user/potholer54#p/c/A4F0994AFB057BB8
This is what you want, OP. A good series explaning the science and data behind why we believe in AGW, debunking common miconceptions from both supporters and opponents of AGW, complete with (gasp!) sources. It's 13 videos of about 10 minutes each, but when you think about it, you wasted more time than that watching Tin Cup for the fifteenth time last weekend.

Part 2 of the series even discusses why a very small number of climate scientists don't believe the current models are correct, and what their work has shown. (Basically, the scientists who disagree with current models are all looking at 10000 year trends, not 100 year trends, and AGW-deniers tend to take their work grossly out of context... but that's simplified, so you should watch the video.)