Decreased regional precipitation and associated changes in runoff and storage from droughts is exacerbating urban scarcity by impairing the quality of water available for its resource management in cities . For example, less runoff to freshwater rivers can increase salinity and concentrate pathogens and pollutants that increases risks of urban water scarcity . Drought also changes the dynamics of groundwater pollution, leading to increased environmental health risks when those sources are used for urban water supplies . Changes in the nature of
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report