Many cities worldwide struggle with air pollution, caused by everything from endless cars to power-guzzling factories. And sadly, in many urban hubs across the globe, air pollution is on the rise – in ...

Many cities worldwide struggle with air pollution, caused by everything from endless cars to power-guzzling factories. And sadly, in many urban hubs across the globe, air pollution is on the rise – in ...

Kathmandu ranked as the seventh most polluted city in the world at that time. Cairo, Egypt, topped the list as the world’s ...

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, ...

Economic growth and car ownership are driving worsening air quality, with the problem magnified by Central Asia’s ...

Dhaka, the densely populated capital of Bangladesh, ranked fourth among the world’s most polluted cities on Friday morning, ...