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Earth Science

Iron From Antarctic Rocks Fuels Algae Growth 40 40

MTorrice writes "The Southern Ocean around Antarctica is a significant carbon dioxide sink. Phytoplankton in the ocean pull down a large amount of carbon dioxide from the atmosphere. Oceanographers have wondered where these photosynthetic microbes get enough iron to fuel this process. A new study (abstract) suggests that iron leached into the sea from rock weathering and bacterial activity on Antarctica may be part of the answer. Climate change could actually accelerate this iron release, leading to larger blooms of phytoplankton and more carbon dioxide uptake by the ocean, the researchers say."
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Iron From Antarctic Rocks Fuels Algae Growth

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