Al Gore calls Alberta oil sands an 'open sewer' Add to ... CTV.ca News Staff Published Monday, May. 06 2013, 12:51 PM EDT Last updated Monday, May. 06 2013, 2:06 PM EDT Why is Al Gore attacking Canada? Power Play host Don Martin weighs in on the former U.S. V.P's comments and Joe Oliver's reaction Watch More Video: Al Gore calls Alberta oil sands an 'open sewer' Aldi & Lidl take German rivalry overseas Alberta teen dies during rodeo training ride Student in custody following Pennsylvania school stabbing U.S. ambassador to Canada Bruce Heyman talks Keystone and climate change Three reasons the Leafs are so terrible; U.S. ambassador on Keystone; and an affordable home Police say 20 students injured in stabbing at Pennsylvania school Meet new U.S. Ambassador Bruce Heyman and his wife Vicki Kerry on defense over Ukraine policy President Obama pushes economic agenda at a Maryland high school Gymnast Kyle Shewfelt honoured by Olympic Hall of Fame induction Black America suffering underemployment crisis B.C. Premier seeks to rival Alberta in energy sector Retiring Olympian Chandra Crawford 'sad' to miss future races Why Paul Harris likes Bank of America, Deere and Target Sovereignty should take a backseat to Quebec's economy New Finance Minister faces Question Period grilling Streetwise: Agrium's New CEO is Open to Selling Assets [03-25-14 2:45 PM] Buying a home in Calgary? Act fast, realtors say Fed to keep interest rates low What do Harper's new appointments say about the state of his team? Comments AA More Related to this Story Ottawa strikes back at Al Gore's remarks on oil sands as 'open sewer'