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A vast dam across the Bering Strait could stop the AMOC collapsing
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A vast dam across the Bering Strait could stop the AMOC collapsing

New Scientist · May 9, 2026, 7:00 AM

Key takeaways

  • If a key ocean current collapses it could plunge northern Europe into a big freeze.
  • The idea comes from Jelle Soons and his colleague Henk Dijkstra at the University of Utrecht in the Netherlands, who study the Atlantic Meridional Overturning Circulation or AMOC.
  • There is huge uncertainty about what would happen if it collapses, but some models suggest it could see temperatures in northern Europe drastically plunge.

Why this matters: new research or scientific developments with potential real-world impact.

If a key ocean current collapses it could plunge northern Europe into a big freeze. Now researchers are weighing up a drastic intervention – building a 130-kilometre-wide dam between the US and Russia

Twitter / X icon Linkedin Reddit Email The Bering Strait separates Alaska and Russia. It would be an engineering project on a truly epic scale, but we may one day need to consider building a dam between Alaska and eastern Russia. The audacious proposal would be designed to stave off the worst consequences of the collapse of a vital ocean current, and researchers have been mulling it over this week at a major conference.

The idea comes from Jelle Soons and his colleague Henk Dijkstra at the University of Utrecht in the Netherlands, who study the Atlantic Meridional Overturning Circulation or AMOC. This current system, which includes the Gulf Stream, is a major reason why northern Europe has a relatively mild climate for its latitude.

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