Opposition To The Keystone XL Pipeline Tests The Administration's Resolve On Climate Change 09/09/2013 04:56 am ET | Updated Sep 09, 2013 1.1 K The New Yorker The New Yorker Getty Lisa Jackson, frustrated by Obama’s inaction on climate change, left the E.P.A. in February. Read more on The New Yorker More: Keystone Pipeline FOLLOW POLITICS facebook twitter Suggest a correction GET THE NEWSLETTER Enter your email address to get top stories and blog posts emailed to you each day. CONVERSATIONS FOLLOW HUFFPOST HuffPost Politics HuffPost Politics HuffingtonPost Available on the App Store Android App on Google Play Get it at Blackberry App World HUFFPOST NEWSLETTERS Enter your email address to get top stories and blog posts emailed to you each day. Get top stories and blog posts emailed to me each day. Newsletters may offer personalized content or advertisements. Learn More.