Sea ice stretches to the horizon off Coast Guard Cutter Healy's port side Sept. 2, 2015. Healy is underway in the Arctic Ocean in support of the National Science Foundation-funded Arctic GEOTRACES, part of an international effort to study the distribution of trace elements in the world's oceans. ( Coast Guard photo by Petty Officer 2nd Class Cory J. Mendenhall)

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Photo credit: © AB Forces News Collection / Alamy / Afripics
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Keywords: arctic, coast, geotraces, guard, healy, icebreaker, mendenhall, ocean