The book presents detailed case studies examining the Rhone Basin in the Canton Valais, Switzerland and the Aconcagua Basin in Valparaiso, Chile. In order to understand and assess the interplay of complex and interlinked environmental and socio-economic issues, the author looks beyond the technology, modelling, engineering and infrastructure associated with water resources management and climate change adaptation, to assess the decision-making environment within which water and adaptation policy and practices are devised and executed.