Donald Trump now says that global warming is a hoax – but 7 years ago he wrote a letter to president Obama urging him to take urgent action on climate change. What changed? And what should it tell us about the scam Trump is running on the American people? Farron Cousins joins Thom Hartmann to discuss this.

Thom is a four-time Project Censored-award-winning, New York Times best-selling author. His national daily progressive radio talk show is distributed to radio stations nationwide by Westwood One, Pacifica, and Free Speech TV. More people listen daily to the Thom Hartmann Program than any other progressive talk show in the nation.