See How the World’s Most Polluted Air Compares With Your City’s

By BY NADJA POPOVICH, BLACKI MIGLIOZZI, KARTHIK PATANJALI, ANJALI SINGHVI AND JON HUANG from NYT Climate https://www.nytimes.com/interactive/2019/12/02/climate/air-pollution-compare-ar-ul.html?partner=IFTTT