Expanses of Russia’s permafrost in the Arctic Circle is thawing – revealing fascinating prehistoric artefacts but also releasing carbon into the atmosphere in the form of greenhouse gases.
Read more from correspondent Diana Magnay, including an graphic explainer of the process here: https://news.sky.com/story/russias-permafrost-is-thawing-and-it-could-make-melting-polar-ice-caps-look-like-a-sideshow-12359940
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