Can Iron-Enriched Ocean Thwart Global Warming?

Publication: National Geographic News   Date: June 9, 2004   View Article

Virtually all life in the world’s oceans is directly or indirectly dependent on one-celled plants called phytoplankton. These plants, which live at the ocean surface, feed on ocean nutrients to survive.

But about 20 to 30 percent of these crucial nutrients sink out of reach of the phytoplankton each year, according to Jorge Sarmiento, a professor of atmospheric and ocean sciences at Princeton University in New Jersey.

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