A study published in PNAS suggests that lead pollution during the Roman Empire may have caused a decline of 2.5 to 3 IQ points in the European population. The research, led by Joe McConnell from DRI, analyzed ice core samples to assess lead levels and their health impacts, revealing significant pollution during the Pax Romana. The study highlights the harmful effects of lead exposure, particularly on children, and emphasizes the historical impact of industrial activities on human health. Teljes cikk (Euronews.com)