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World Oceans Day: Deltas critical to food production, fisheries health, storm protection
Russia's Lena Delta is sensitive to rapidly warming Arctic temperatures.
Credit: NASA
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Deltas are home to more than half a billion people; here, Egypt's Nile River Delta at night.
Credit: NASA
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Scientists are studying the Ganges-Brahmaputra-Meghna Delta, which supports 150 million people.
Credit: Sustainable Deltas Project/University of Minnesota
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The Sundarbans in Bangladesh and West Bengal has the largest mangrove forest in the world.
Credit: NASA
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Birds from around the world migrate to Alaska's Yukon Delta to nest and raise their young.
Credit: NASA
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A satellite view of oil trapped where the Mississippi River meets the Gulf of Mexico.
Credit: NASA
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