Power from plankton

"During the past two years, scientists have successfully tapped the chemical reactions from decomposing organic matter on the ocean floor to create fuel cells that can provide low levels of electrical power for many months.
This week, Oregon State University researchers announced that they have taken that development one step farther by harnessing the same power-producing decomposition activity from plankton taken from the upper water column..."

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Intresting new idia for new energy sorce.