Vanadium Releases (IMAGE) Duke University Caption Emissions rise from a tar sands mining and processing facility along the Athabasca River in northern Alberta, Canada. Credit Garth Lenz Usage Restrictions None License Licensed content 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.