Spyros Pandis is Research Professor of Chemical Engineering and Engineering and Public Policy in Carnegie Mellon University and Professor in the Chemical Engineering Department of the University of Patras in Greece. He received his PhD from the California Institute of Technology in 1991 and joined the faculty of Carnegie Mellon University in 1993 and of the University of Patras in 2004. His research applies principles of chemical engineering to the control of air pollution and climate change. Prof. Pandis has published 230 peer-reviewer papers which have received approximately 14000 citations. He has served as mentor to 30 PhD graduates. The work of his group has contributed to successful regulation and improvements in air quality in areas around the world.