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AMOC Weakens 10%: Impacts on Climate and Weather Ahead

4/13/2026

Summary

Story summary

Buoy measurements in the western Atlantic show the Atlantic Meridional Overturning Circulation (AMOC) is weakening.
Since 2004, the AMOC has weakened about 10%, with an annual flow decline of roughly 90,000 cubic meters per second.
Freshwater from melting Greenland ice dilutes salty water, slowing its sinking.
Experts warn that continued weakening could bring colder European winters and disrupt monsoons in Asia and Africa, and more observations are needed.

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Story summary

Buoy measurements in the western Atlantic show the Atlantic Meridional Overturning Circulation (AMOC) is weakening.
Since 2004, the AMOC has weakened about 10%, with an annual flow decline of roughly 90,000 cubic meters per second.
Freshwater from melting Greenland ice dilutes salty water, slowing its sinking.
Experts warn that continued weakening could bring colder European winters and disrupt monsoons in Asia and Africa, and more observations are needed.