The economic impact was calculated by estimating factors like work absences and years lost due to illness. Measured on a per capita basis, ...

Beijing -- once infamous for its toxic haze -- has reduced smog levels and dropped down a list of the world’s most polluted cities, falling...

Scientists agree that coal is choking the planet—so why is it so hard for the governments to ditch?

Seven of the top 10 most polluted cities on the list and 15 of the top 20 and 25 of the top 50 are in India.

Gurugram, located southwest of India's capital New Delhi, led all cities in pollution levels in 2018, even as its score improved from the p...