Researchers used a regional climate model to predict changes in summer precipitation over China from 2016 to 2040. They compared the model's results with those from a global climate model. The regional model showed better accuracy in mimicking current precipitation patterns in China. The study found that under the RCP8.5 emissions scenario, total and extreme precipitation is projected to increase in northeast China and the Tibetan Plateau, but decrease in southeast China. The regional model projected stronger changes in precipitation patterns compared to the global model, particularly in the Yangtze River valley. The findings suggest that changes in precipitation patterns may be influenced more by changes in atmospheric water vapor transport than by changes in moisture content itself.