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Researchers examine an ice core sample taken from a glacier in the Pamir mountain range in Tajikistan, at the Hokkaido University Institute of Low Temperature Science, in Sapporo, in northern Japan’s Hokkaido prefecture. Photo: AFP
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Researchers examine an ice core sample taken from a glacier in the Pamir mountain range in Tajikistan, at the Hokkaido University Institute of Low Temperature Science, in Sapporo, in northern Japan’s Hokkaido prefecture. Photo: AFP