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Thanks for the info. Yes, I've read about leaded petrol and its effects on the brain, more so in children. I even read somewhere a while ago (maybe on HN) that

by vram22 9y ago

Thanks for the info. Yes, I've read about leaded petrol and its effects on the brain, more so in children. I even read somewhere a while ago (maybe on HN) that crime had come down somewhat over some decades (in the US?), which was partly attributed (in the article I read) to reduced use of leaded petrol (gasoline). Interesting about the silver study, and agree about quacks.

deeth_starr 9y ago
Worldwide probably... http://www.motherjones.com/kevin-drum/2015/01/yep-gasoline-lead-explains-crime-decline-canada-too http://www.motherjones.com/kevin-drum/2015/01/yep-gasoline-l...
askvictor 9y ago
Interestingly, the guy (Thomas Midgley) who thought to add lead to petrol is the same guy who thought of using CFCs for refrigerants.
- DougN7 9y ago
  Wow, what a tragic guy: "J. R. McNeill, an environmental historian, opined that Midgley "had more impact on the atmosphere than any other single organism in Earth's history." https://en.m.wikipedia.org/wiki/Thomas_Midgley_Jr https://en.m.wikipedia.org/wiki/Thomas_Midgley_Jr.