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Did Gulf Spill Boost "Dead Zone"?

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      • © 2010 National Geographic; partially funded by NSF; field producing and videography by Fritz Faerber

        Did Gulf Spill Boost "Dead Zone"?

        October 25, 2010—Microbes consuming oil from the Gulf of Mexico's BP spill deplete oxygen levels when they die, raising the threat of an expanded "dead zone," which endangers some marine life. Now scientists are using years of dead-zone data to determine whether the dangerous region grew after the spill.

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