Forest Guardians, Forest Destroyers: The Politics of Environmental Knowledge in Northern ThailandIn this far reaching examination of environmental problems and politics in northern Thailand, Tim Forsyth and Andrew Walker analyze deforestation, water supply, soil erosion, use of agrochemicals, and biodiversity in order to challenge popularly held notions of environmental crisis. They argue that such crises have been used to support political objectives of state expansion and control in the uplands. They have also been used to justify the