I'm confident that most GW "hotheads", especially those in politics and the "green" industry, but even ordinary Prius driving liberals and GW zealots on this thread know that man made global warming has not been proven and that the effort to check it will hurt millions of people, and take resources away from any effort to adjust to the real GW that will occur regardless of man's efforts, due to normal and natural climactic change. They deny it in their own short term interest.