Phys.org  June 28, 2021 Since the 1960s, the global land surface wind speed (SWS) has significantly weakened, a phenomenon known as global terrestrial stilling. The stilling reversed around 2010 and global SWS is strengthening. It has seriously affected the ecological environment and social economy, especially restricting the sustainable development of the wind energy industry. Researchers in China analyzed the transition and regional differences in the long-term trends of the SWS in China based on observational SWS data from 1971 to 2019. The results showed that annual mean SWS in China underwent a reversal from a continuous weakening trend to a […]