Professor Maarten Hajer (Director of the Netherlands Environmental Assessment Agency and Professor of Public Policy at the University of Amsterdam), 'Reframing Climate Policy: Reflections on Science, Politics and the Role of the State'. Professor Hajer was delivering the keynote address at the conference 'Democratising Futures' (28 May). Part of the Mellon Sawyer sponsored seminar series 'Modelling Futures: Understanding Risk and Uncertainty'.