Despite a vast amount of effort and expertise devoted to them, many environmental conflicts have remained mired in controversy, stubbornly defying resolution. Why can some environmental problems be resolved in one locale but remain contentious in another, often carrying on for decades? What is it about certain issues or the people involved that make a conflict seemingly insoluble? This volume addresses these and related questions, examining what researchers and experts in the field characterize as intractable disputes - intense disputes that persist over long periods of time and cannot be resolved through consensus-building efforts or by administrative, legal, or political means. The approach focuses on the frames parties use to define and enact the dispute - the lenses through which they interpret and understand the conflict and critical conflict dynamics. Through analysis of interviews, news media coverage, meeting transcripts, and archival data, the contributors to the book: examine the concepts of frames, framing, and reframing, and the role that framing plays in conflicts; outline the essential characteristics of intractability and its major causes; offer case studies of eight intractable environmental conflicts; present a body of original interview material from affected parties; and set forth recommendations for intervention that can help resolve disputes. Within each case chapter, the authors describe the historical development and fundamental nature of the conflict and then analyze the case from the perspective of the key frames that are integral to understanding the dynamics of the dispute. They also offer cross-case analyses of related conflicts. Conflicts examined include those over natural resource use, toxic pollutants, water quality, and growth. Specific conflicts examined include the Quincy Library Group in California; Voyageurs National Park in Minnesota; Edwards Aquifer in Texas; Doan Brook in Cleveland, Ohio; the Antidegradation Environmental Advisory Group in Ohio; Drake Chemical in Pennsylvania; Alton Park/Piney Woods in Tennessee; and three examples of growth-related conflicts along the Front Range of Colorado’s Rocky Mountains.