PBS Frontline - Hot Politics
http://www.pbs.org/wgbh/pages/frontline/hotpolitics/

Hot Politics goes behind the scenes to examine the forces behind the inaction, including a well-financed energy industry campaign that challenged the broad scientific consensus on the human causes of climate change in an effort to stall federal regulation. Fossil fuel companies funneled millions of dollars to the institutes of global warming skeptics, including former President of the National Academy of Sciences Frederick Seitz, who cast doubt about the science in media reports on climate change.