Ambient (outdoor) air pollution
Key factsAir pollution is one of the greatest environmental risks to child healthIn 2019, 99% of the world’s population was...
Key factsAir pollution is one of the greatest environmental risks to child healthIn 2019, 99% of the world’s population was...
This article was produced by National Geographic Traveller (UK).Today, around 4.4 billion people live in cities. That’s more than half...