As the world gets hotter and more crowded, our engines continue to pump out dirty emissions, and half the world has no access to clean fuels or technologies (e.g. stoves, lamps), the very air we breathe is growing dangerously polluted: nine out of ten people now breathe polluted air, which kills 7 million people every year.

Air pollution is hard to escape, no matter how rich an area you live in. It is all around us. Microscopic pollutants in the air can slip past our body's defences, penetrating deep into our respiratory and circulatory system, damaging our lungs, heart and brain.

More than 90% of the world's children breathe toxic air every day

Air pollution and child health: prescribing clean air

Clean Air Day Campaign is an opportunity to find out more about air pollution, share information with friends and colleagues, and help make the air cleaner and healthier for everyone.

Anti-idling Campaign to call on drivers to cut air pollution by turning off their engines while stopping on the school run.