The combination of widespread extreme heat and human-caused air pollution has exposed nearly 40% of the global population to dangerous levels of ground-level ozone so far this year, according to a new report by the Copernicus Atmosphere Monitoring Service.

The combination of widespread extreme heat and human-caused air pollution has exposed nearly 40% of the global population to dangerous levels of ground-level ozone so far this year, according to a new report by the Copernicus Atmosphere Monitoring Service. ↧ Nearly 40% of global population exposed to dangerous ozone pollutio... Widespread extreme heat and human-caused air pollution have exposed nearly 40% of the global population to dangerous levels of ground-level ozone so far this year.