21 February

The World Health Organisation has now listed air pollution as the greatest threat to global health. Only 8% of the people in the world breathe healthy air, it's killing millions. You can plug in even regional cities to their new tool, it's great. If you live in a city with good air quality, but have a wood fire, the numbers will be misleading though. Wood fires turn your home and your neighbourhood into downtown Beijing. http://breathelife2030.org