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One of the most abundant creatures in the aquatic world is the tiny crustacean called a copepod. Most live as plankton in the open ocean. But they also live in the deepest ocean trenches, freshwater streams and lakes, in caves, and really anywhere there’s water — from frigid to very hot.
Carbon dioxide in the atmosphere is taken up by the ocean. In fact, scientists estimate that about 45% of the carbon dioxide emitted by humans has been absorbed by the ocean. What happens to it in the ocean?