Hat tip to Dennis for the following excellent piece on the effects of air pollution on health and life-expectancy.

Here is the link. The writer, Euan Mearns, has carried out a lot of research of reports and picked out the relevant passages in his extensive look at this subject. What he has uncovered is that there is still a great deal that is not understood and that, as we all know, there is much exaggeration made to create alarm.