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Nature 420, 722 (19 December 2002) | doi:10.1038/420722a

Ocean tests raise doubts over use of algae as carbon sink

Rex Dalton

Plans to use marine microorganisms as a sink for atmospheric carbon dioxide appear to have suffered a setback. Early results of an experiment designed to test the concept indicate that the process is significantly less effective than originally thought — and may also have undesirable side effects.