The average IQ of Europeans would have dropped due to lead pollution

This is demonstrated by a study published on 6 January 2024 in the journal PNAS and taken up by Geo, conducted by researchers at the Desert Research Institute (Nevada), which shows massive atmospheric contamination with lead as early as the second century BC, mainly related to silver mining in the Roman Empire."For every ounce of silver extracted, thousands of ounces of lead were released into the air," explains the authors. Taken by winds over …