Today is Clean Air Day. I'm writing this article because too many of us do not breathe clean air. We suffer health problems and die too soon because we do not breathe clean air. That needs to change.

This is a topic that I've been talking about a lot lately, especially after the World Health Organisation released new data on air pollutionlast month, including stats like:

• 9 out of 10 people worldwide breathe polluted air; and

• Air pollution causes 1 in 9 deaths worldwide.

I was invited be part of a Channel 4 News feature to help raise awareness on how air pollution affects people with cystic fibrosis. You can see my (very short!) clip in this piece on the UK’s most polluted areas.