One of the major concerns in climate change studies is how the thermal conditions for the living environment of human beings will change in the future. In a paper recently published in Atmospheric and Oceanic Science Letters , Prof. Xuejie Gao from the Institute of Atmospheric Physics, Chinese Academy of Sciences, and his coauthors, try to answer this question based on their recently completed and unprecedented set of high-resolution (25 km) 21st-century climate change simulations. These simulations were produced using the regional climate model RegCM4, driven by four global model simulations over China—the country with the world’s largest population.