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Study raises new doubts about carbon storage

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  • npat1
    Fw: [fuelcell-energy] ... Study raises new doubts about carbon storage In Short: The capture and storage of CO2 deep underground may prove an environmentally
    Message 1 of 1 , Aug 1, 2006
      Fw: [fuelcell-energy]

      ---------- Forwarded Message ----------
      Study raises new doubts about carbon storage

      In Short:

      The capture and storage of CO2 deep underground may prove an
      environmentally risky solution to global warming, a US government
      experiment revealed.

      RELATED

      Coal: a clean energy source for the future?
      Brief News:

      US researchers who injected carbon dioxide in a depleted oil field in
      Texas found it caused the minerals underground to dissolve, raising
      fresh doubts about carbon capture and storage technology as a viable
      solution to global warming.

      Yousif Kharaka, the geochemist who led the experiment, said the 1,600
      tonnes of liquid CO2 injected underground changed the acidity of the
      minerals, causing them to dissolve. This, she said, has environmental
      implications as the liquid CO2 could then leak into ground water or
      find its way back into the atmosphere and aggravate the greenhouse
      effect. The results of the study, performed in October 2004, were
      published in the July 2006 edition of journal Geology.

      Experimental carbon capture and storage (CCS) projects are currently
      being implemented around the globe. The technology is believed to
      hold the promise of a future where fossil fuels such as oil and coal
      can become clean of CO2 emissions, the most important gas held
      responsible for global warming.

      In Europe, the largest project involves the injection of liquid CO2
      to force more oil out of a field in the North Sea. The project, which
      is supported by the governments of Norway and Great Britain, is due
      to be phased in by 2010 by companies Shell and Statoil.

      The EU Commission is due to present a policy paper on carbon capture
      and storage at the end of 2006 that will address the use of the
      technology to reduce emissions from all fossil fuels, especially in
      the coal sector.


      Links


      Press articles


      New Scientist: Carbon dioxide's great underground escape in doubt

      Sydney Morning Herald: Buried gases may escape: scientists

      BBC: Carbon burial plan for North Sea

      Le Monde: Une �tude relance le d�bat sur le stockage g�ologique du
      CO2

      http://www.euractiv.com/en/sustainability/study-raises-new-doubts-
      carbon-storage/article-157057

      http://tinyurl.com/h6hfm

      j2997






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