Fascinating post by Kevin Drum at Mother Jones.
Here’s a fascinating little anecdote about lead and crime from a recent paper by Rick Nevin. It shouldn’t be taken as proof of anything, but it’s certainly an intriguing little historical tidbit about the association between lead exposure and increases in crime rates.
Here’s the background. Homicides increased dramatically between 1900-11, but most of that appears to be the result of increased rural homicides, not urban homicides. If lead exposure is part of the reason, it would mean that rural areas were exposed to increasing levels of lead about 20 years earlier, around 1880 or so. But why? Nevin suggests that the answer to this question starts with another question: Why are barns red? . . .