Prof.dr.ir. Arjan van Timmeren is full professor at TUDelft, Faculty of Architecture and the Built Environment, Department Urbanism, section Environmental Technology & Design(ETD). Besides he is Scientific Director of Resilient Delta Initiative in Rotterdam, Academical Portfolio Director Sustainable Cities program for the TUD Extension School, and Principal Investigator at AMS Institute in Amsterdam (Institute for ‘Advanced Metropolitan Solutions’). His work focuses on sustainable development in the built environment, with emphasis on Environmental Technology, Urban Metabolism, Circular and Biobased Economy, Nature Based Solutions, Urban Climate and environmental behaviour. He leads several (inter)national projects and has seats in (inter)national steering groups, quality teams and scientific boards, special issue editorships and is lecturing all over the globe as expert and keynote speaker.