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A man walks through deep snow in the shadow of the Yakutsk thermal energy plant in Yakutsk, Sakha Republic, Russia, on Sunday, Feb. 14, 2016. Yakutsk, the capital of Russia's diamond-producing Yakutiya region in eastern Siberia, has a reputation as the world's coldest city. Photographer: Andrey Rudakov/Bloomberg via Getty Images

A man walks through deep snow in the shadow of the Yakutsk thermal energy plant in Yakutsk, Sakha Republic, Russia, on Sunday, Feb. 14, 2016. Yakutsk, the capital of Russia's diamond-producing Yakutiya region in eastern Siberia, has a reputation as the world's coldest city. Photographer: Andrey Rudakov/Bloomberg via Getty Images