Population exposed to clean water scarcity under (uncertain) climate change and socioeconomic development.

Population exposure to clean water scarcity (expressed in billion people, and as a percentage) per geographic region under uncertain climate change and socioeconomic developments.Water scarcity is quantified considering water quantity aspects only (WS) and also including surface water quality (WSq). Assessments are made on the basis of monthly output data of sectoral water demands (domestic, industrial, livestock and irrigation), water availability (e.g. discharge) and water quality (total dissolved solids, biological oxygen demand and fecal coliform) simulated by a coupled global hydrological (<i>PCR-GLOBWB2</i>) and surface water quality (<i>DynQual</i>) model.