A case study by the American Society for Environmental History illustrated the changing perspectives on dams with a discussion on the possibilities presented by large-scale dam removal in the Klamath River Basin. Dam historian D.C. Jackson opened the program with a slide presentation of background information. Then producer/writer Stephen Most talked about the controversy and showed a clip of his documentary ļ¬lm River of Renewal. Residents and interest groups involved in the controversy over water use presented their points of view and responded to questions from members of the audience. Nancy Langston moderated.