U.S. poised to pump in more of Canada's dirtiest oil

December 08, 2010 02:57 PM

UPDATED December 08, 2010 03:15 PM

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    Check out the fog in Whatcom County on Monday morning, Dec. 11. The stagnant air can trap pollutants near the surface, causing poor air quality. An air stagnation advisory is in effect until Thursday afternoon, according to National Weather Service.