The Gulf Stream suddenly moved north during an ancient cold snap – and it’s a warning for our future

Sun, 14 Jun 2026 22:17:47 +1000

Andrew Pam <xanni [at] glasswings.com.au>

Andrew Pam
<https://theconversation.com/the-gulf-stream-suddenly-moved-north-during-an-ancient-cold-snap-and-its-a-warning-for-our-future-285081>

"Around 13,000 years ago, as the world was emerging from the grip of the last
ice age, much of the North Atlantic region plunged back into near-glacial
conditions.

Sea ice expanded across the North Atlantic, reaching as far south as the
Shetland Islands. Glaciers began to regrow in the Scottish Highlands, while
winter temperatures across Europe and North America plummeted. Yet off the
coast of Atlantic Canada, the ocean did the opposite.

In our new study, published in the journal Nature Communications, we found
evidence that waters off Nova Scotia, Canada, warmed as the Gulf Stream shifted
hundreds of kilometres northward, while deep circulation also changed.

It is the first direct evidence that this vital current responded in such a way
during a period of abrupt climate change that rearranged Atlantic Ocean
circulation.

The finding lends support to the climate models that predict a similar
northward shift in the future if the Atlantic Meridional Overturning
Circulation (Amoc) weakens – a trend that has probably already begun."

Cheers,
       *** Xanni ***
--
mailto:xanni@xanadu.net               Andrew Pam
http://xanadu.com.au/                 Chief Scientist, Xanadu
https://glasswings.com.au/            Partner, Glass Wings
https://sericyb.com.au/               Manager, Serious Cybernetics

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