Kevin Drum points out a report that includes a section linking crime to environmental lead:
The Brennan Center has released a lengthy report examining the reasons for the big crime decline of the 90s and aughts, and one section highlights the work of Jessica Reyes and others linking crime levels to gasoline lead emissions:
Reyes, and other researchers, have found that lead is connected to aggressive behavior and behavioral problems because it affects brain development of children….Reyes found that the decrease in lead caused a remarkable 56 percent of the decrease in violent crime in the 1990s….This theory had been previously suggested by another economist, Rick Nevin, in 1999. He illustrated a similarity in the trends between violent crime and gasoline lead 23 years prior.
….In December 2013, an NAS roundtable discussed the lead theory. There was an extended discussion in which most participants seemed to concur that…
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