Keith
Larry Bell's contribution is somewhat discredited for me when I read:
"Larry Bell, an architecture professor who has not published any peer-reviewed climate research, wrote Climate of Corruption, in which he argues that "politics is responsible for the global warming hoax." Forbes provides Bell a weekly column where he often casts doubt on manmade climate change, which he incorrectly says is "based upon speculative theories, contrived data and totally unproven modeling predictions" when in fact there are several observed lines of evidence of rapid climate change."
http://mediamatters.org/blog/2012/11/28/meet-the-climate-denial-machine/191545
He also seems to have links to Exxon Mobil funding which, if true, would seriously compromise his impartiality on the subject.
