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As It Happens | Jan 7, 2013 | 7:09

John Smol on oilsands study

Queen's University professor discusses a new study looking at oilsands and pollution in northern Alberta lakes

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The National - The National for May 20, 2013May 20, 2013 | 47:49The National The National for May 20, 2013 VideoClosed Captions available
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