India leads the list of most polluted cities as researchers warn of severe health and climate impacts.

But if you have bad air, you cannot tell people to pause breathing,” she said. Several cities like Beijing, Seoul, South Korea, and Rybnik in Poland have successfully improved their air quality ...

Breathing cold air during winter can make ... Swollen airways are narrower and can’t take in as much air. That’s why people with asthma often have trouble catching their breath.

Most of the world’s population is breathing polluted air, with only seven countries ... there is only one monitoring station for every 3.7 million people. The data gap could grow wider following ...