Really interesting article. Here are a couple highlights but this one is worth clicking on to read in its entirety, even the original to give it the clicks it needs.

This means air pollution has overtaken tobacco use and poor diet to become the second leading risk factor for early death, behind only high blood pressure, it said.

Nearly every person in the world breathes unhealthy levels of air pollution every day, the report found.

I found the parts about the "spikes" especially interesting.