A Swiss company that tracks global air quality has named Delhi the world’s most polluted national capital for the sixth year ...

Chad, in central Africa, is the world’s most polluted country, while California has the worst air pollution in North America, ...

New Delhi has been named the most polluted capital city worldwide for the seventh consecutive year, with PM2.5 levels close ...

Nearly the entire world is breathing dirty air, as a shocking map reveals that just 17 per cent of the world's cities meet ...

The associate professor said we're lucky India didn't have industrial landscape changes before the 80s. It’s why the images ...