Cathy Collentine is the director of Sierra Club's Beyond Dirty Fuels campaign. 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 Current page 2