Doug Hayes is a senior attorney with the Sierra Club's Environmental Law Program. Prospects for Keystone XL Pipeline Are Bleaker Than Ever From Nebraska to Federal Court, the Sierra Club Keeps Up the Fight on Keystone XL What's Next for Standing Rock and the Dakota Access Pipeline Fight? Trade Deals Like the TPP Put Corporate Polluters Above the Law Court Hears Arguments Over Enbridge's Illegal Tar Sands Imports Fury Over Midwest Tar Sands Pipeline Scandal Grows