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Study Warns AMOC Collapse Could Trigger Global Climate Crisis

4/17/2026

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Summary

Story summary

A new study published in Science Advances finds the Atlantic Meridional Overturning Circulation is more likely to collapse, predicting a 42%–58% slowdown by 2100.
Oceanographer Stefan Rahmstorf emphasizes the urgency, saying the AMOC may reach a tipping point by mid-century.
The slowdown could bring extreme winters in Europe, droughts in Africa, and rising U.S. East Coast sea levels.
The findings urge action on human-driven climate change.

History

Historical Context

The Atlantic Meridional Overturning Circulation (AMOC) has faced significant fluctuations since the Great Salinity Anomaly in the 1960s, which weakened its flow. A 2004 study warned of its decline, predicting severe weather changes. Current projections suggest a 42%-58% slowdown by 2100, emphasizing the urgent need to address human-driven climate change to prevent catastrophic impacts on global ecosystems.

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Story summary

A new study published in Science Advances finds the Atlantic Meridional Overturning Circulation is more likely to collapse, predicting a 42%–58% slowdown by 2100.
Oceanographer Stefan Rahmstorf emphasizes the urgency, saying the AMOC may reach a tipping point by mid-century.
The slowdown could bring extreme winters in Europe, droughts in Africa, and rising U.S. East Coast sea levels.
The findings urge action on human-driven climate change.

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