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The ocean is losing its breath. Here's the global scope

19:00 EST 3 Jan 2018 | AAAS

(Smithsonian) In the past 50 years, the amount of water in the open ocean with zero oxygen has risen more than fourfold. In coastal water bodies, low-oxygen sites have increased more than 10-fold since 1950. Scientists expect oxygen to continue dropping even outside these zones as Earth warms. To halt the decline, the world needs to rein in both climate change and nutrient pollution, an international team of scientists asserted in a new paper published Jan. 4 in Science.

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