For decades, the fossil fuel industry has cast doubt and delayed action on climate change.
 
Our investigation of how they did it continues tonight.
 Episode two of our three-part docuseries The Power of Big Oil chronicles how, as scientific evidence of human-caused climate change mounted in the 2000s, the industry continued to question the science, and went to new lengths to shape American politics and stall climate policy.
 
 
 Watch The Power of Big Oil, Part Two: Doubt tonight at 10/9c on PBS (check local listings) and on our YouTube channel, or stream it starting at 7/6c on pbs.org/frontline and in the PBS Video App. 
 
 If you missed part one of the series, Denial, you can stream it in the PBS Video App or online anytime. 
 
The Power of Big Oil concludes next Tuesday, May 3, with part three, Delay.
 
Thank you for watching.