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Water availability mediates rural and urban development through impacts on sectors such as agriculture and industry. Recognising that climatic risks attenuate this water availability, various adaptation options have been implemented in the water sector. To inform adaptation prioritisation, it is critical to assess the growing literature on adaptation options related to water management and synthesise lessons on which options are feasible and under what conditions. We assess the multidimensional feasibility of adaptation options in the water sector at the global scale using two examples: strategies to improve irrigation efficiency in rural areas (e.g. drip irrigation, watershed management), and sustainable water management in urban areas (e.g. flood management, upgrading sewage systems). To contextualise the assessment and showcase how adaptation feasibility is regionally differentiated, we present two case …