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Environment

Plan to refreeze Arctic sea ice shows promise in first tests

Field trials indicate that pumping seawater onto the snow on top of Arctic sea ice can make the ice thicker, offering a possible way to preserve sea ice throughout the summer

By Madeleine Cuff

23 September 2024

New Scientist. Science news and long reads from expert journalists, covering developments in science, technology, health and the environment on the website and the magazine.

Seawater is pumped onto the snow covering the sea ice in an effort to thicken the ice

Real Ice/www.realice.eco

A bold plan to pump seawater over the frozen Arctic Ocean could offer humanity a final chance to save the region’s vanishing sea ice.

Field trials conducted this year in the Canadian Arctic to thicken sea ice using water from the ocean below have proved successful, says UK start-up Real Ice.

Arctic sea ice cover is shrinking rapidly in response to climate change. Many scientists expect the region to…

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