Here is the view of Dr. John Christy, professor of atmospheric science at the Uiversity of Alabama at Huntsville:

http://johnharmstrong.typepad.com/john_h_armstrong_/2008/09/what-can-a-clim.html

According to Al Gore's declaration about people who do not believe in catastrophic anthropogenic global warming, Dr. Christ must believe that the earth is flat, and is probably being paid a fortune by Exxon to confuse the public.