Al Gore Explains The Real Motiviation Behind Republicans' Climate Change Denial

Despite the release of a White House report detailing the devastating effects of global warming already underway, many Republicans are unwavering in their belief that humans play no role in climate change. Sen. Marco Rubio (R-Fla.), for instance, told ABC News on Sunday that he does not "believe that human activity is causing these dramatic changes to our climate the way these scientists are portraying it." And last month, Sen. Rand Paul (R-Ky.) claimed the global warming debate had become "dumb...