Human activity, from burning fossil fuels and fireplaces to the contaminated dust produced by mining, alters Earth's atmosphere in countless ways. Records of these impacts over time are preserved in ...

CNN is reporting on a strange metal object that fell from the sky into a relatively deserted area in the Republic of Namibia last month: Paul Ludik, director of the country’s National Forensic Science ...

An international team of scientists led by DRI found evidence of Southern Hemisphere heavy metal pollution preserved in Antarctic ice cores from early Andean cultures and Spanish Colonial mining that ...