bill moyers provides no proof of man made global warming and then says...
"So intense is the political and corporate opposition to the concept of manmade climate change — despite a majority of Americans who accept it as reality — that some of the more rational officeholders and local governments quietly are trying to work around the resistance, preparing for the worst without mentioning the dreaded words climate change or global warming."
Reality shows... 53 percent either say warming is caused by natural patterns or that there is no solid evidence of warming.
http://www.people-press.org/2014/06/26/section-7-global-warming-environment-and-energy/