An Introduction to Integrated Water Resources Management, this is a broad examination of critical concepts and knowledge needs including essential human and institutional capacities. Topics include: impacts of anthropogenic alterations on the water cycle; changes and impacts that occur as a result of land use change and development; aquatic ecosystem health and impact assessment; water use (quality and quality issues); wastewater issues including impacts, methods of treatment and mitigation, the urban water cycle and methods to evaluate and choose appropriate technologies; governance and capacity building in communities; and building and maintaining water management infrastructure.