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Gulf of Mexico Dead Zone
The dead zone is an area where nutrient pollution from lawns, sewage treatment plants, farm land and other sources along the Mississippi River wash into the Gulf of Mexico, causing algae blooms that deplete oxygen from the water and make it difficult for marine life to survive.
Gulf of Mexico Beach on Grand Isle, a barrier island located in the Gulf of Mexico at the mouth of Barataria Bay. © Erika Nortemann/The Nature Conservancy
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