Clean air is a basic human right, but a lot of people are deprived of it. Two thirds of the cities in the world with adequate air quality data are suffering from dangerous levels of pollution, and this is having a significant impact on human health. So how exactly is it impacting us, and what can be done about it? Joining us to discuss this and more is Karine Leger, the Managing Director of Airparif, the air pollution monitoring network for the Paris region.