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Story summary
- Two peer-reviewed studies say the Atlantic Meridional Overturning Circulation could lose half its strength by 2100.
- Miami researchers recorded a 10 % decline over the past 20 years at western-boundary sites.
- European analysis finds models underestimate slowdown and projects a >50 % reduction by 2100, about 60 % stronger than estimates.
- Scientists warn the trend may near a tipping point, causing a collapse in ~140 years that could cool Atlantic and intensify winter storms.
