David Sanchez, University of Pittsburgh (IMAGE) University of Pittsburgh Caption This is David Sanchez, PhD, assistant professor of civil and environmental engineering and assistant director of the Mascaro Center for Sustainable Innovation. Credit University of Pittsburgh 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.