Marco Rubio: Humans aren't causing climate change

Florida Sen. Marco Rubio (R) dismissed the dire warnings in the White House's latest climate change report, saying flatly that humans were not to blame for the warming planet. "I do not believe that human activity is causing these dramatic changes to our climate the way these scientists are portraying it," he said in an appearance on ABC's This Week, adding that proposed laws to address the issue would do nothing but "destroy our economy." The climate change report, released last week, concluded...