Ens. Laurin Smith demonstrates and observes pipe-patching techniques during damage control training Aug. 17, 2015, aboard Coast Guard Cutter Healy, while underway in the Arctic Ocean in support of Geotraces. Geotraces is Healy's second science expedition of the summer, and is an international effort to study the health of 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