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Last updated on April 25, 2014 at 5:25 EDT

Scientists Explore ‘Dead Zones’ in the Oceans

June 18, 2009

Hypoxic zones are areas in the ocean of such low oxygen concentration that animal life suffocates and dies, and as a result are sometimes called “dead zones.” One of the largest dead zones forms in the Gulf of Mexico every spring. This data visualization discusses the causes of hypoxia in the Gulf of Mexico. credit: NOAA