The fact checking site, Politifact, has gathered and fact-checked recent claims about climate-change. Website here. Again, we see that politicians (cough cough, Marco Rubio), use the tiniest bit of controversy in science to totally devalue the overwhelming evidence and opinion of the majority of scientists that specialize in the field.
“An overwhelming majority of scientists agree that humans, by burning fossil fuels, contribute directly to global warming. A May 2013 report analyzing all scientific papers that address the causes of climate change showed 97.1 percent of the studies that took a position on global warming said that there’s been a negative human impact on the atmosphere.”