The Guardian, Smithsonian, Atlas Obscura, Daily Mail, UPI, Heraldo, Energy and Environment News, Gizmodo in Australia and Clean Malaysia reported on a new analysis of ice core data and historical records that shows human-made lead air pollution has been elevated for approximately the last 2,000 years, except for a four-year period during a devastating pandemic read more Media report on Harvard, UMaine study on human-made lead air pollution