Back to today’s briefing

Story perspectives

Weakening AMOC Cools Greenland Blob, Raises Flood Risk

6/9/2026

48 10 Full Breakdown

Summary

Story summary

Researchers say the cold blob in Greenland is cooling because the Atlantic Meridional Overturning Circulation (AMOC) is weakening.
Heat content in the upper 1,000 meters fell sharply, matching reduced ocean-heat transport.
Salinity in the blob reached its lowest level in 120 years, while the Gulf Stream slowed over four decades.
Researchers warn that further AMOC weakening could raise U.S. East-coast flood risk and alter European weather.

1 of 1

Story summary

Researchers say the cold blob in Greenland is cooling because the Atlantic Meridional Overturning Circulation (AMOC) is weakening.
Heat content in the upper 1,000 meters fell sharply, matching reduced ocean-heat transport.
Salinity in the blob reached its lowest level in 120 years, while the Gulf Stream slowed over four decades.
Researchers warn that further AMOC weakening could raise U.S. East-coast flood risk and alter European weather.