It would seem that the people that should know about this topic are in majority agreement about man's role in global warming.
Who stands to gain if global warming is shown to be either a hoax or a fact of nature on which man has no effect?
Who stands to gain if global warming is shown to be a long term grave threat?
The doubters generally have something besides the welfare of others at heart. As far as 'who gains'....I have a natural distrust of any pronouncement from Big Business. Truth, and any semblance thereof, is purely coincidental to Big Business's ends. Much like the Bush Administration.