It is a well-established fact that global warming hawkers, such as the United Nations' Intergovernmental Panel on Climate Change (IPCC), have used faulty and dishonest research and numbers in attempting to promulgate their agenda.
Many people are rejecting the idea of man-made global warming as they realize they have been had by unscientific research crafted to further the economic interests of its adherents.
Little surprise, I suppose, that Osama bin Laden has now entered the fray, blaming global warming on the United States and the Western world. He is looking for ways to injure the US economically, and prodding the world to reject US goods is seen by him as simply another weapon in his anti-US crusade. Whether he really believes in global warming or not is beside the point.
Bin Laden continues to struggle in maintaining his own relevance. Recently he took credit for the (failed) Christmas Day attack on an airliner bound for Detroit. Bin Laden has been running and hiding since 9/11, afraid to pop his head out of its hole for fear the US will blow it off. His personal survival is his priority.
President Obama recently said since 9/11, "we" have put in a series of measures that make us much safer now than before. "We?" It was the Bush Administration that gets the credit, not Obama. Thanks primarily to George W. Bush, bin Laden remains a peripheral figure, unable to do anything but take credit for failed attacks and issue ignorant statements about global warming.