Pollution debated in Canada's oil fields

Pollution debated in Canada's oil fields
Edmonton, Alberta (UPI) Oct 26, 2013 - U.S. scientists said areas near Canada's oil and gas production zones are heavily polluted and residents suffer elevated levels of different cancers. The region north of Edmonton, Alberta, Canada's primary oil production hub processing thousands of barrels of oil from the rich tar sands daily, has an air quality worse than some of the world's most polluted cities, a study by the Univers ... morehttp://www.terradaily.com/reports/Pollution_debated_in_Canadas_oil_fields_999.html