FYI. Iowa Public Television's, "Intelligent Conversations". An hour lecture on global warming by Bjorn Lomborg, author of The Skeptical Environmentalist and Cool It.  http://www.iptv.org/video/detail.cfm/2083/ittv_20080522_139

Argues convincingly that we’re only being told part of the story and are making bad choices as a consequence. Unfortunately he also only tells part of the story which is at some point global warming converts to global cooling unless you want to claim a lack of validity of 800k years of ice core data.