First officer Jukka Vuosalmi sits at the controls of the Finnish icebreaker MSV Nordica as it sets sail in the North Pacific Ocean toward the Bering Strait, Friday, July 7, 2017. A group of international researchers is sailing into the Arctic Sea aboard the Finnish icebreaker to traverse the Northwest Passage and record the environmental and social changes that are taking place in one of the most forbidding corners of the world. (AP Photo/David Goldman)
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