A massive ocean current that keeps the Earth’s climate stable didn't just slow down; it 'stepped' off a cliff in 2009.
The Atlantic Meridional Overturning Circulation (AMOC) underwent an abrupt, non-linear decline rather than a gradual weakening. This means the risk of sudden, catastrophic climate tipping points is much higher and more immediate than previous 'slow-slide' models suggested.
arxiv | Apr 14
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