This was a very well designed study covering the entire United States. The results show a very strong correlation between the level of air pollution in a given area and the incidence of diabetes. Take a look at the maps in the actual published research paper and you'll see what I mean:
If you just want a quick summary of the results, here's the press release by the hospital involved in the study:
And here is one of the many popular press articles:
I'll be writing some articles on this soon so stay tuned.
Happy Halloween Everyone! Don't let those ghouls get you.