Check out the coal and diesel haze over Mongolia in winter. This first video is brutal: https://www.nationalgeographic.com/environment/2019/03/mongolia-air-poll

Check out the coal and diesel haze over Mongolia in winter. This first video is brutal: https://www.nationalgeographic.com/environment/2019/03/mongolia-air-pollution/ https://www.nationalgeographic.com/environment/2019/03/mongo...