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Tuesday, February 17, 2009

Using the Ocean to Sequester Crop Residue Carbon

This story caught my eye........

Researchers from the University of California and Washington propose that the only method that has a long term, efficient, practical and economic impact in removing carbon dioxide from the atmosphere is the removal and burial of crop residues in the deep ocean and preferably off the mouths of major rivers.

Why dump at the end of major rivers?

River’s-end dump sites already receive a fair amount of vegetable matter that flows down river. So any ecological effect would likely be minimized compared with other parts of the deep ocean, according to the Christian Science Monitor Blog.

According to the abstract and full study, which is posted in the Journal of Environmental Science and Technology, this process is 92% efficient in sequestration of crop residue, such as corn stalks, while cellulosic ethanol production is only 32% efficient.

The research team says that this process (burial of crop residues in the deep ocean) can potentially capture 15% of the current global carbon dioxide annual increase.

Robert Carney, a biological oceanographer from LSU offers some caution with the proposal by lead researchers Stuart Strand (University of Washington) and Gregory Benford (University of California) toward the bottom of the Christian Science Monitor blog page.

1 comment:

  1. Nice info friend :D

    Keep update the post okay :D Thx


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