Philip Vergragt is an Associate Fellow at the Tellus Institute, a research professor at Marsh Institute, Clark University, and a Professor Emeritus of Technology Assessment at Delft University of Technology, The Netherlands. He has co-authored more than 80 scientific publications and three books. His research focuses on sustainable technological and social innovations in transportation, energy, and housing; grassroots innovations; socio-technical transitions; sustainable consumption and production; and technology assessment of emerging technologies. In the last five years, he has co-founded SCORAI, the North American (and European) Sustainable Consumption and Action Initiative, the North American Roundtable on Sustainable Production and Consumption (NARSPAC), the Worcester Housing, Energy, and Community group (WoHEC), and the Global Research Forum on SPaC. He obtained a PhD in Chemistry from the University of Leiden, The Netherlands, in 1976.