YouTube - 2/21/2010: Minnesota Governor Tim Pawlenty: 'Cap and trade would be a disaster'

Transcript: GREGORY: Is climate change real?

PAWLENTY: The climate is obviously changing, David. The more interesting question is how much of it is man-made and how much is as a result of natural causes and patterns. Of course, we have seen data manipulation and controversy, or at least debate within the scientific community.

GREGORY: Three years ago you said anyone who questions it is not right.

Flashback: Pawlenty's Record - WSJ.com

In April [2007?], Mr. Pawlenty delivered the remarks that probably best reveal his views on the environment. "It looks like we should have listened to President Carter," he told the Minnesota Climate Change Advisory Group. "He called us to action, and we should have listened. . . . Climate change is real. Human behavior is partly and may be a lot responsible. Those who don't think so are simply not right. We should not spend time on voices that say it's not real."

Sept '09: Pawlenty's current climate change stance differs from past

Pawlenty was a vocal advocate of creating a cap and trade system to curb greenhouse gas emissions. In 2008, he and Janet Napolitano, then Arizona's Democratic Governor, recorded a radio ad urging Congress to address climate change.