Didn’t see the response til now. It’s odd though: the lead comes from the planet, there’s a set amount of it. the most humans do is increase it’s entropy. So I’

Didn’t see the response til now. It’s odd though: the lead comes from the planet, there’s a set amount of it. the most humans do is increase it’s entropy. So I’m not sure talking about lead levels in the planet makes sense: they’ve been about the same planet-wide. Meteorites I guess? Hardly a man-made mechanism though.