The AMOC stayed strong even as a major ocean “lifeline” nearly shut down

ScienceDaily
Aug 6, 2026, 1:40 am94 pts
Ancient seafloor sediments have revealed a surprising twist in how the Atlantic’s massive circulation system works. During a cold period about 3.4 million years ago, the flow of warm, salty water from the Indian Ocean into the Atlantic nearly shut down—but the AMOC did not weaken as expected. Parts of the…

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