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Research finds weakening of Atlantic circulation



A new study has drawn worrying conclusions about changes in aspects critical to the global climate system.

Why is it important: The apparent weakening of the Atlantic Meridian Overturning Circulation (AMOC) (largely due to melting ice) is a reminder that climate change may bring unpleasant surprises in the future.

Push the news: Published in Natural Earth Science Researchers reported on Thursday that AMOC (an ocean current system that includes the Florida Ocean Current and the Gulf Stream) is in “the weakest state in a thousand years.”

  • AMOC is the thermohaline circulation of the ocean. It plays an important role in managing the global climate, including keeping the temperature of Europe higher than its latitude.

Big picture: AMOC is called the “fatal weakness”

; of climate. When it is switched on and off in the history of the earth, it will cause drastic changes.

  • In the 2004 climate disaster film “After Tomorrow”, the film became famous in one fell swoop. The film was closed in the film and caused strong storms and weather to sweep major cities around the world.

Yes, but: Even if the current is reduced more, there will not be such a great distance, and researchers still cannot directly grasp the health of AMOC, which is why they are forced to use proxy data in their research.

Bottom line: The biggest reason for worrying about climate change and taking action is not the most likely but survivable bad result, but the unlikely result.


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