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Changing ocean chemistry caused by increasing concentrations of carbon dioxide may reduce the availability of dissolved iron to marine phytoplankton, as the kind shown here. | NOAA
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Rising Ocean Acidity May Deplete Vital Phytoplankton

Iron-poor oceans may cause populations of phytoplankton -- a critical base of the marine food chain -- to decline.

January 14, 2010
3:00 AM EST

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