"This very expensive global warming bullshit has got to stop. Our planet is freezing, record low temps, and our GW scientists are stuck in ice," Donald Trump tweeted last year.

Now that he is leading in the race to become the Republican presidential candidate, he has toned it down only a little.

"When I hear Obama say climate change is the number one problem, it's just madness," he told Fox News.

"It's called weather, [it] changes and you have storms and you have rain and you have beautiful days," Mr Trump said when rebutting Pope Francis's plea for action on climate change to the American people.

The other front runner, Dr Ben Carson, has a similar view.

"[At] any point in time, temperatures are going up or temperatures are going down. Of course that's happening," he said.

"When that stops happening, that's when we're in big trouble."

source: http://www.abc.net.au/news/2015-11-23/climate-change-clashes-in-us-politics/6961546

Is Dr Ben trying to walk both sides of the street?

** life is sinusoidal  ;)