Bill McKibben & Co, girding for battle vs. Canadian tar sands, the largest energy project in North America.  Obama will rule on this question in November: https://www.tarsandsaction.org/
Meanwhile, Time asks if ExxonMobil’s Yellowstone River oil spill will undermine the viability of tar sands pipeline, which crosses the same river:
https://ecocentric.blogs.time.com/2011/07/08/will-exxons-yellowstone-oil-leak-doom-the-chances-of-a-tar-sands-pipeline/?xid=tweetbut