Invisible pollution can be just as deadly

Just because the pictures from New Delhi are more shocking and obvious, it doesn’t mean Ireland’s air is actually clean. We must act now, write John Sodeau and John Wenger.            

We breathe to live and to do so we inhale and exhale around 11,000 litres of air every day.

Increasingly, people throughout the world are becoming rightly concerned about how “clean” their air is.