CRS Report – Changes in the Arctic: Background and Issues for Congress. Updated May 17, 2021: “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.The seven other Arctic states are Canada, Iceland, Norway, Sweden, Finland, Denmark (by virtue of Greenland), and Russia. The Arctic Research and Policy Act (ARPA) of 1984 (Title I of P.L. 98-373of July 31, 1984) “provide[s] for a comprehensive national policy dealing with national research needs and objectives in the Arctic.”The National Science Foundation (NSF) is the lead federal agency for implementing Arctic research policy. The Arctic Council, created in 1996, is the leading international forum for addressing issues relating to the Arctic. The United Nations Convention on the Law of the Sea (UNCLOS) sets forth a comprehensive regime of law and order in the world’s oceans, including the Arctic Ocean. The United States is not a party to UNCLOS. Record low extents of Arctic sea ice over the past decade have focused scientific and policy attention on links to global climate change and projected ice-free seasons in the Arctic within decades. These changes have potential consequences for weather in the United States, access to mineral and biological resources in the Arctic, the economies and cultures of peoples in the region, and national security.The geopolitical environment for the Arctic has been substantially affected by the renewal of great power competition. Although there continues to be significant international cooperation on Arctic issues, the Arctic is increasingly viewed as an arena for geopolitical competition among the United States, Russia, and China..”