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Story summary
- Researchers report the North Atlantic “cold blob” stems from a slowdown of the Atlantic Meridional Overturning Circulation, not surface wind cooling.
- A study using 1995-2024 observations and model reanalysis finds deep-water cooling to 1,000 m and a decline in surface heat loss since 1955, indicating reduced warm-water transport by the AMOC.
- Scientists warn that AMOC weakening could bring colder European winters, disrupt tropical rainfall, and raise U.S. East Coast sea levels.
