Dr. Spyros Pandis is Professor in the Chemical Engineering Department of the University of Patras in Greece and Director of the Laboratory of Air Quality Studies (LAQS) in the Institute of Chemical Engineering Sciences of FORTH. 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 includes theoretical and experimental studies of atmospheric chemistry as it relates to urban and regional pollution and topics related to global climate change. He is one of the most cited researchers in Geosciences (Thompson Reuters). He has been awarded among others the CAREER award by the US National Science Foundation, the Sinclair Award by the American Association for Aerosol Research, the Cecil Award for excellence in environmental engineering research by the American Institute of Chemical Engineering, the Lacey Lectureship by Caltech, an ERC Senior Investigator award, and the Bjerkness Medal by the European Geophysical Union.