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Disappearing polar bears and permafrost : is a global warming tipping point embedded in the ice? : h

United States. Congress. House. Committee on Science and Technology. Subcommittee on Investigations and Oversight.
Washington : U.S. G.P.O. : For sale by the Supt. of Docs., U.S. G.P.O., 2008. 2008

National security implications of climate change in the Arctic : hearing before the Subcommittee on

United States. Congress. House. Committee on Foreign Affairs. Subcommittee on Europe, Energy, the Environment and Cyber, author.
Washington : U.S. Government Publishing Office, 2022. 2022