We excel in developing hydrological models for numerous applications, through analysing and interpreting climate and hydrologic data to understand hydrologic processes, conceptualising the processes in models, and calibrating and testing models against observations. However, these models, developed using past observations, may be less reliable when used to predict a future under warmer and higher CO2 conditions. This session invite papers addressing hydrologic-non-stationarity and challenges and solutions in extrapolating hydrological models to predict the future.