Bjorn Lomborg wrote an incredible book called "The Skeptical Environmentalist". As far as I am concerned, it should be must-reading for all conservatives, no, for EVERYBODY! He debunks all the politically-motivated junk science theories. He doesn't say that global warming doesn't exist, just says it could be due to other factors AND that the "remedy" is worse than the disease. Get yourself that book ASAP; you'll never regret it. It comes in handy when I'm debating liberals on my dearly-held environmental issues, LOL! P.S. It could be a valuable tool in converting liberals, and we can use all of those we can find.
Another interesting study in in a recent Scientific American, which soundly denounced Lomborg but ran a different article on the oceans ability to serve as a heat sink for any atmospheric warming. He postulated that it would take from 50 to 100 years to really confirm the results of global warming and start to validate some of the models.