Greenhouse gases

Watch The Full Documentary: 'Do The Math'

Watch: "Do The Math" chronicles follows the climate crusader Bill McKibben as he works with a rising global movement in a David-vs-Goliath fight to change the terrifying math of the climate crisis.

Coal Ad Men: Decades Of Deception

Since the 1970s, the coal industry has been deploying deceptive advertising campaigns to scrub its image and delay important clean air standards. They use the same arguments year after year - environmental protections will cripple the economy,