U.S. President Barack Obama (R) holds a salmon as he meets traditional fishermen on the shore of the Nushagak River in Dillingham, Alaska September 2, 2015. After meeting tribal leaders and fishermen in Dillingham, home to the world's largest sockeye salmon fishery, Obama will fly into Kotzebue, an Arctic town of about 3,000 that is battling coastal erosion caused by rising seas. (Photo by Jonathan Ernst/Reuters)
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