Changing ocean chemistry may threaten Antarctic food chain

National Science Foundation-funded researchers at the University of California, Santa Barbara, have collected the first long-term evidence that links rising levels of carbon and changes in ocean chemistry in Antarctica to the inability of tiny animals, such as sea snails, to build the shells that help them survive. As oceans absorb carbon-dioxide from the air, it makes the water more acidic, decreasing what scientists call the pH.

Provided by the National Science Foundation and the University of California Santa Barbara

Runtime: 2:26

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