Biological Hot Spots: Ocean eddies may not always lock away carbon

9:19am, May 16, 2007

Large blooms of plankton often appear in ocean eddies, temporary swirls that sometimes bring cool, nutrient-rich water to the surface. When those organisms die, the carbon they contain has to go somewhere, but new studies suggest that very little of it sinks to the ocean floor and gets locked away in sediments. The new data might quash hopes that fertilizing the ocean surface could pull enough carbon dioxide from the atmosphere to substantially affect climate.

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