I usually don't pass this stuff along, but this one is pretty good Flash animation. I'll also recommend "George Lucas Presents: Singing In The Rain" which I can only find on salon.com's Video Dog section (requires subscription) but will probably wind up on the Chocolate Cake City site (click on the Videos tab).
While I was in DC for Thanksgiving, I had a chance to read my brother Joseph Romm's latest book, Hell and High Water: Global Warming--the Solution and the Politics--and What We Should Do which will be out in January. It will alter how you think about the immediacy of inaction on climate change. Reserve your copy now!