报告题目：Rapid warming in summer wet bulb globe temperature in China and its causes
报告摘要：Based on a newly developed observational dataset and a suite of climate model simulations, this talk presents an evaluation of changes in summer mean wet bulb globe temperature (WBGT) in China from 1961 through 2080. It will show that summer mean WBGT has increased almost everywhere across China since 1961 due to human-induced climate change. Consequently, hot summers measured by summer mean WBGT are becoming more frequent and more conducive to heat stress, with substantially higher influence in Western China than in Eastern China. Observation-constrained projections of future summer mean WBGT under the RCP8.5 emissions scenario indicate that, by the 2040s, almost every summer in China will be at least as hot as the hottest in the historical record, and by the 2060s, common summers (that occur once every 2 years) will be about 2.0 °C hotter than the historical record in both Western and Eastern China.