Do you have a link to these data offhand? (Don't go crazy looking for it. I was just curious)
Ever read "The Skeptical Environmentalist"? It's about a Global Warming Researcher who, in a nutshell, did his homework and was unable to reconcile his results with the 'pop science' that's generally recognized as hard truth today. Judging by the number of global warming researchers that rushed to discredit him as a heretic, I say that he might have been on to something.
But I'm just a conspiracy theorist at heart.....