Oil at $50 a barrel seems like the reason the Kochs back out of this project - the climate change issue is just a convenient excuse to cover for a bad commodity bet. By the way, they aren't even leaving the oil sands, just moving their money to a different project with a partner to help the risk. So much for Alberta's climate change policy.

http://www.jwnenergy.com/article/2016/12/koch-pengrowth-jv-launches-process-new-oilsands-project-near-lindbergh/