Cathy Collentine is the director of Sierra Club's Beyond Dirty Fuels campaign. Disgraceful: Trump's Actions on Dakota Access and What's Next All Risk, No Reward: Enbridge’s dirty fuels pipeline system threatens the Great Lakes TransCanada attempts to run out the clock on Keystone XL Senators Take A Stand Against Tar Sands Pipelines 5,000+ Join Tar Sands Resistance March 5,000+ Join Tar Sands Resistance March Pagination First page « First Previous page ‹‹ Page 1 Page 2