Evidence to support the idea that human emissions are causing global warming has been piling up for more than three decades. Denial of this demonstrable scientific truth has become a litmus test for Republicans. The reasons for this denial seem to be a massive PR campaign funded by the coal and oil industries combined with a deep-seated and angry cultural strain of American know-nothingism.

"The Obama administration recently pulled the plug on lowering EPA limits. It seems clear, though, that the lower the level, the fewer effects on health."

"In lobbying for a presidential permit to construct a massive oil pipeline stretching from Canada to the Gulf Coast, TransCanada’s Paul Elliott has tried nearly every angle.

"President Obama’s visit to the Solyndra solar panel factory in California last year was choreographed down to the last detail — the 20-by-30-foot American flags, the corporate banners hung just so, the special lighting, even coffee and doughnuts for the Secret Service detail."

"WASHINGTON — The House on Friday passed a new version of a stopgap spending bill about 30 hours after rejecting a nearly identical version of the legislation, intended to keep the government open and to provide assistance to victims of natural disasters."

"Perry fast-tracked new plants and made Texas even more polluted than it already was."

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"In April 2006, a few days before Earth Day, Texas Gov. Rick Perry joined executives of TXU, the state's largest utility and biggest carbon dioxide emitter, in cheering plans to open a staggering 11 new coal-fired power plants throughout Texas. With rolling blackouts still fresh on many Texans' minds, Perry hailed TXU's rapid expansion as a path to energy security, not to mention a way to create jobs and potentially lower energy costs.

"The President's advisers have made it official and are recommending a strong veto of a House bill that would gut two key anti-pollution rules."