In this study, we assessed clean-water scaricty for >10,000 sub-basins worldwide. To do this, we developed clean-water scarcity indicators including a water quantity-based indicator and a water quality-based indicator. To quantify these indicators, we combined the MARINA-Nutrients (Model to Assess River Inputs of pollutaNts to seAs), MAgPIE (Model of Agricultural Production and its Impact on the Environment), and VIC (Variable Infiltration Capacity) models into an integrated modelling framework (in Figure 1 of the publication).