This is a pretty incredible twist on the whole ocean current/climate change story: turns out that the motion of the ocean can't be entirely accounted for by weather. What's the missing energy input? Swimming fish & other sea creatures.
"If swimming generates tide-scale forces, then 'it has an impact on global climate'. This is a rather novel twist to the whole climate story,” said William Dewar, a Florida State University oceanographer.
So, apparently overfishing causes climate change in addition to its other issues.
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