Photos: Delhi’s Toxic Sky

New Delhi and nearby cities and towns in India are suffering through some of the worst air quality that residents have experienced in years.

Millions of people in Delhi, India, and neighboring states are struggling to cope with eye-watering smog that has settled on the region—creating some of the worst air quality in years. Government authorities have declared a public-health emergency, closing schools, halting construction, and restricting cars to an “odd-even” system, based on their license plates, to try to halve the number of vehicles on the roads. The toxic stew filling the air comes from a combination of vehicular and industrial emissions and smoke from the seasonal burning of rice-paddy stubble on farms in nearby states.