Heat stress indicators (IMAGE) University of Tokyo Caption These maps show different regions of the world overlaid with a range of heat stress data over the long term, between 1980 and 2019. (a) shows air temperature, (b) shows specific humidity, (c) shows relative humidity, (d) shows daily mean of 6 different HSIs and (e) shows daily maximum of 6 different HSIs. Credit (c)2024 Guo et al. CC-BY-ND Usage Restrictions Credit must be given to the creator. No derivatives or adaptations of the work are permitted. License CC BY-ND Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.