decent case that environmental lead poisoning caused minor but pervasive brain damage and concentrated in poor communities who got most of the lead https://twitter.com/mattyglesias/status/978828910539497472 …
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Lead poisoning is a thing, but the case that it is responsible for lead differences is overstated. Lead levels by race barely differ in historical context.pic.twitter.com/AaDdhJ5p18
Try reading Jensen 1973 book. He discusses a lot of these ad hoc environmental claims.
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