A new video is out from Annie Leonard, who made the popular The Story of Stuff video, on Cap and Trade. I liked parts of The Story of Stuff, but she relies too much on questionable data for me to recommend it. Some of those problems appear in this video as well, but they are not as pronounced. Plus, she does a good job of explaining cap and trade, and the potential problems associated with it. You can also read about the video and some the controversy surrounding it on the New York Times' Green Inc. blog.
Suite 101: Cap-and-Trade Versus Carbon Tax
Update: Cap-n-Trade Versus Carbon Tax