Air pollution is a truly damaging environmental insult to the human body. The numbers of premature deaths, in the UK alone, that can be attributed to it are calculated to be 40,000 a year.
Yet despite this, action to tackle the problem - as with the other huge environmental issue of our time, climate change - is distinctly lacking.
Robin Russel-Jones dermatologist and chair of Help Rescue the Planet - joins us to discuss what should be done to tackle the problem.
Read the full analysis:
http://www.bmj.com/content/357/bmj.j2713
Medicine and Science from The BMJ