Jos Lelieveld

The total number of deaths due to HIV and malaria is 2.8 million per year, that's half a million less than the number of people who die from air pollution globally.

It takes more than making the technology available. You have to convenience people to abandon traditional ways of doing things, which is not easy, this can be a win-win situation. Changes on the individual level can have a positive impact, not only on our health but also on climate change.

When most people think of outdoor air pollution, they tend to think of traffic and industry having the largest impact on global premature mortality, not residential energy emissions and agriculture.

Testing for the effects of air pollution emissions in different parts of the world was a very challenging task.