Scientists have shown that as the planet warms water vapor, and thus clouds, will increase, trapping even more heat. One scientist, however, suggests random events drive clouds, which then drive warming. CREDIT: Nicolle Rager Fuller, National Science Foundation View full size image New research suggesting that cloud cover, not carbon dioxide, causes global warming is getting buzz in climate skeptic circles. But mainstream climate scientists dismissed the research as unrealistic and politically motivated. "It is not newsworthy," Daniel Murphy, a National Oceanic and Atmospheric Administration (NOAA) cloud researcher, wrote in an email to LiveScience. The study, published July 26 in the open-access online journal Remote Sensing, got public attention when a writer for The Heartland Institute, a libertarian think-tank that promotes climate change skepticism , wrote for Forbes magazine that the study disproved the global warming worries of cl...