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: Iran oil deal could be bad news for high-cost producers Why it's likely that oil will dip below $40 again Taxes and debt financing: How Alberta's budget addresses the revenue shortfall Alberta’s austere budget by the numbers Take a ride inside a giant haul truck simulator (it's harder than you think) Jim Prentice lays out Alberta's fiscal realities Reality Check: Could a shortage of oil storage in the U.S. push prices even lower? Canada & U.S. sign new border agreement to speed up crossings Taber police cry foul over bylaw criticism Alberta the weak link in Canadian jobs picture Edmonton oil workers laid off, stranded at remote camp 'I still can't find my nephew': Peruvian mudslide victim French Olympians die in helicopter crash in Argentina Oklahoma students protest after fraternity's racist video surfaces Calgary-based Team Canada wins Brier after bold skip change U.S. Senate fails to override Obama’s Keystone veto Investor Ross Beaty: Now's the time to look at the metals sector 'I don't see him winning': Donald Trump weighs in on Jeb Bush Obama vetoes Keystone bill What's the appetite for oil and gas deals? Comments AA More Related to this Story Ottawa strikes back at Al Gore's remarks on oil sands as 'open sewer'