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View Diary: A 'carbon bomb' at the top of Keystone XL Pipeline (63 comments)

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  •  One answer, from Public Citizen: (5+ / 0-)

    Making liquid fuels from tar sands requires large amounts of energy and water for steam injection and refining. This process generates two to four times more greenhouse gases per barrel than extraction of conventional oil.... After the oil is processed, the toxic byproducts are discharged into tailings ponds. The toxic mine tailing ponds from Athabasca tar sands in Alberta, Canada, now cover approximately 50 square miles. Link

    The spirit of liberty is the spirit which is not too sure that it is right. -- Judge Learned Hand, May 21, 1944

    by ybruti on Mon Feb 04, 2013 at 06:21:05 PM PST

    [ Parent ]

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