Title: Expression of Concern: Forecasting water scarcity with an optimized Soil and Water Assessment Tool (SWAT) model under representative concentration pathway (RCP) scenarios, Cen Li, Xin Guo, Liping Chen, Majid Khayatnezhad and Fatemeh Gholinia, <i>Water Supply</i> ws2024085, https://dx.doi.org/10.2166/ws.2024.085