Ortwin Renn,^* Andreas Klinke,^** Marjolein van Asselt<sup>***


*</sup>Ortwin Renn () serves as full professor and Chair of Environmental Sociology and Technology Assessment at Stuttgart University (Germany). He directs the Interdisciplinary Research Unit for Risk Governance and Sustainable Technology Development (ZIRN) at Stuttgart University and the non-profit company DIALOGIK. Renn is primarily interested in risk governance, political participation and technology assessment. Address: Department for Social Sciences V, University of Stuttgart, Seidenstr. 36, 70174 Stuttgart, Germany. e-mail: ortwin.renn@sowi.uni-stuttgart.de
^**Andreas Klinke is head of the research group “Governance of Infrastructures” in the Social Science Department (Cirus) at the Aquatic Research Institute (Eawag) of the ETH-domain in Zurich. His research primarily focuses on environmental, water and risk governance, in particular new modes of governance, institutional change, non-state participation, legitimacy and effectiveness. Address: Eawag, Swiss Federal Institute of Aquatic Science and Technology (Domain of ETH), Ueberlandstr. 133, 8600 Duebendorf, Switzerland, e-mail: andreas.klinke@eawag.ch
^***Marjolein van Asselt holds the Risk Governance chair at Maastricht University (The Netherlands) and serves as member of the Scientific Council for Government Policy (WRR), in The Hague (The Netherlands). Her research focus on how society deals and can deal with scientific uncertainty in public policy making. Address: Maastricht University, Faculty of Arts and Social Sciences, Technology and Society Studies, P.O. Box 616, 6200 MD Maastricht, The Netherlands, e-mail: marjolein.vanasselt@maastrichtuniveristy.nl