The Washington Post:
“Climate change has become a wedge issue,” said Roger Pielke Jr., a University of Colorado professor who has written extensively on the climate debate. “It’s today’s flag-burning or today’s partial-birth-abortion issue.”
Historically, climate change has ranked near the bottom of issues that voters care about as they evaluate presidential candidates. It wasn’t a factor in 2008’s primary season or general election. The major parties’ nominees endorsed the scientific consensus and believed that the government should curb carbon emissions.
In fact, John McCain, back in 2007 clearly said to voters,
“I do agree with the majority of scientific opinion, that climate change is taking place and it’s a result of human activity, which generates greenhouse gases.” He made global warming a key element of every New Hampshire stump speech.
So what has changed? It appears that some Republican candidates are trying to out-conservative each other. Others have stuck with scientific thought. Mitt Romney and Jon Huntsman have both indicated that they agree with the majority of scientific opinion, that climate change is taking place. It’s a result of human activity and that green house gases are a by product of this human activity:
The nominal GOP front-runner, Mitt Romney, drew sharp fire from conservatives when he said in June that he accepts the scientific view that the planet is getting warmer and that humans are part of the reason. Former Utah governor Jon Huntsman Jr. (R) on Thursday tweeted: “To be clear. I believe in evolution and trust scientists on global warming. Call me crazy.”