Lead Pollution in Ancient Rome

Recent research suggests that toxic lead pollution in ancient Rome likely decreased the average person’s IQ by 2.5 to 3 points. The study links lead pollution from Roman silver smelters to widespread environmental impact and health effects. Historians debate the role of lead in the empire’s downfall.

Mercury Contamination Among Yanomami Tribe in the Amazon

Illegal gold mining in the Amazon has led to severe mercury contamination among the Yanomami tribe, with detrimental health effects including neurological damage, developmental abnormalities, and mobility issues.