The distinct odour it emits is from hydrogen sulfide, sometimes known as swamp gas. Researchers are studying the frozen - now shapeshifting - earth below known as permafrost.Īs Keith Larson walks between the experiments, the boardwalks purposefully set out in a grid across the peat sink into the puddles and ponds underneath and tiny bubbles appear. On the peatland, covered in tufts of grass and shrubs dotted with blue and orange berries and little white flowers, looms a moonlander-like pod hinting at this far-flung site’s scientific significance. Here in the Arctic in Sweden’s far north, about 10 kilometres (six miles) east of the tiny town of Abisko, global warming is happening three times faster than in the rest of the world. A whiff of rotten eggs wafts through the fresh air. Sheltered by snow-spattered mountains, the Stordalen mire is a flat, marshy plateau, pockmarked with muddy puddles.
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