Tehran’s rapidly worsening air pollution has reached life-threatening levels, prompting Iran’s vice president to caution on Friday that the smog “will kill” as schools and universities across the ...

Add Yahoo as a preferred source to see more of our stories on Google. Smog settles around Delhi's famed Red Fort in the early hours of November. - Sanchit Khanna/Hindustan Times/Getty Images It’s easy ...

Dhaka, March 10 -- Dhaka, the densely populated capital of Bangladesh, ranked second among the world's most polluted cities on Tuesday morning, recording an Air Quality Index (AQI) of 212 at 9:10 am.

According to a report by the Centre for Research on Energy and Clean Air, Ghaziabad topped the list of the most polluted ...

Smog settles around Delhi's famed Red Fort in the early hours of November. - Sanchit Khanna/Hindustan Times/Getty Images It’s easy to tell when it’s smog season in New Delhi; the air gets darker, ...