I must admit, that i became a contrarian after 2 things - one was when I started to hear "the science is settled" and "consensus" - they ring very loud alarm bells for anyone with scientific training. teh second was upon reading Richard lindzens Wall street journal series - particularly on albedo, and water vapor considerations.
Now for something very interesting for BOTH SIDES of the discussion - last year there was a debate held in NY between some of the biggest names in this debate - the household ones been Richard lindzen and Gavin Schmidt (co-owner of realclimate with Mann).
I wondered why i hadnt heard of it again as on realclimate they were a bit apprehensive about participating because it would "imply the science isnt settled" (there's those words again) - here's a pdf of the transcript - really a good read, and I think there is a link to a pod cast on realclimate.org as well.
It is totally equal and unbiased as both views are given equal time, with responses, questions, and also a vote as to who won to keep ACA happy! ;)
www.intelligencesquaredus.org/TranscriptContainer/<wbr>GlobalWarming-edited%20version%20031407.pdf