Ancient Romans' IQ was reduced by the lead in the air they breathed, a new study says. The thirst for silver needed to mint ...

Exposure to lead from mining probably lowered I.Q. levels in the empire, research has found. It might be the world’s first ...

Using Arctic ice core samples, researchers estimate silver mining and smelting released enough lead during the Pax Romana to ...

Lead pollution in ancient Rome likely dropped the average IQ, a study found. The research is based on an analysis of ice ...

A new study turned to Arctic ice core records between 500 BCE through 600 CE to find a link between lead pollution and ...

Atmospheric lead pollution likely caused cognitive decline among citizens of the Roman Empire, according to research ...

New research finds that pollution from ancient silver and lead mining during the Roman Empire resulted in lowered ...

New research suggests that lead pollution from ancient Roman mining and metal production may have lowered intelligence levels across the Empire.

Researchers examined three ice core records to identify lead pollution levels in the Arctic between 500 BC to 600 AD.