Mitt Romney remains cool to climate science - Darren Samuelsohn - POLITICO.com

Mitt Romney is still trying to plant himself in the global warming skeptic camp.

"My view is that we don’t know what’s causing climate change on this planet," the GOP presidential front-runner said Thursday during a fundraiser in Pittsburgh. "And the idea of spending trillions and trillions of dollars to try to reduce CO2 emissions is not the right course for us."