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In this latest edition of the Long Term Ecological Research Network series, John Hobbie and George Kling synthesize the findings from the NSF-funded Arctic LTER project based in Toolik Lake, Alaska, a site that has been active since the mid 1970's. The book presents research concerning the core issues of climate-change science, and addresses the treeless regions of arctic Alaska, as well as the adjoining boreal forests. As a whole, the book examines both terrestrial and freshwater-aquatic ecosystems, and their three typical habitats: tundra, streams and lakes.The book provides a history of the Toolik Lake LTER site, and discusses its present condition and future outlook. It features contributions from top ecologists, biologists, and environmental scientists, creating a multidisciplinary survey of the Alaskan arctic ecosystem. Chapter topics include glacial history, climatology, land-water interactions, mercury found in the Alaskan arctic, and the response of lakes to environmental change. The final chapter brings together these findings in order to make predictions regarding the consequences that arctic Alaska faces due to global warming and climate change, and discusses the future of the LTER site in the region. Alaska's Changing Arctic is the definitive scientific survey of the past, present, and future of the ecology of the Alaskan arctic, and the comprehensive source for the findings from the LTER site in the region.