Joe Farman, who has died aged 82, was the leader of a small group of scientists who made one of the most important discoveries in recent history. In 1985, they published a landmark paper on the ozone layer, the protective skin that filters the sun’s ultraviolet rays and without which the rays can cause cancers and eye damage. Their research showed that the ozone layer was being rapidly depleted over the Antarctic.
http://www.guardian.co.uk/environment/2013/may/16/joe-farman
Arguably, his work saved millions of lives.