File - In this July 14, 2017 file photo, The Finnish icebreaker MSV Nordica sails past the American island of Little Diomede, Alaska, left, and behind it, the Russian island of Big Diomede, separated by the International Date Line on the Bering Strait. The International Maritime Organization has approved two-way shipping routes into the Arctic Ocean through the Bering Strait. The IMO accepted routes proposed by the United States and Russia for safe navigation between Alaska and Russia's Chukotskiy Peninsula. The routes create lanes for northbound and southbound traffic and take effect Dec. 1, 2018. (AP Photo/David Goldman, File)
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