AI Summary

Scientists note that the 965,000‑square‑mile area south and southeast of Greenland, known as the North Atlantic “cold blob,” has cooled by up to 1.8 °F over the past century while surrounding waters have warmed. The cooling is linked to a long‑term decline in the Atlantic meridional overturning circulation (AMOC), a major ocean current that transports water and heat. Researchers from Penn State’s College of Earth and Mineral Sciences argue that the AMOC’s degradation, which began decades ago, may be driven by climate change and could reduce the ocean’s ability to absorb carbon dioxide and heat.

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