“Gov. Romney does not think greenhouse gases are pollutants within the meaning of the Clean Air Act, and he does not believe that the EPA should be regulating them,” said Romney spokeswoman Andrea Saul. “CO2 is a naturally occurring gas. Humans emit it every time they exhale.” Politico, July 2011 .
“Romney went from believing that humans contribute to global warming, though he was uncertain how much, to saying he didn't know what contributes to global warming.” Andrea Saul denied that Romney had “flip-flopped” on his climate stance, responding:
“This is ridiculous. Governor Romney's view on climate change has not changed. He believes it's occurring, and that human activity contributes to it, but he doesn't know to what extent. He opposes cap and trade, and he refused to sign such a plan when he was governor. Maybe the bigger threat is all the hot air coming from career politicians who are desperate to hold on to power.”