Wadi Faynan (image) University of Waterloo Share Print E-Mail Caption Wadi Faynan, Jordan, where researchers found evidence of ancient pollution caused by the combustion of copper. Credit Barqa Landscape Project/University of Waterloo. Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.