Protocol for estimating exposure to compound heat wave and ozone pollution under future climate change

Here we describe the procedure for estimating exposure to the compound heatwave and ozone pollution under future climate scenarios. We first apply the daily-level temperature and ozone concentration across the world and perform bias correction by comparing the distribution of the modeled temperature and ozone concentration to the distribution of historical observation. Then we identify the heatwaves, ozone pollution events, and compound events. Finally, we combine the future exposure and population to identify the high-risk regions and populations. For complete details on the use and execution of this protocol, please refer to Ban et al. (2022).¹.