쇄빙선 썸네일형 리스트형 북극의 변화 Changes in the Arctic: Background and Issues for Congress Updated August 23, 2019 The diminishment of Arctic sea ice has led to increased human activities in the Arctic, and has heightened interest in, and concerns about, the region’s future. The United States, by virtue of Alaska, is an Arctic country and has substantial interests in the region. Record low extents of Arctic sea ice over the pas.. 더보기 이전 1 다음