Ralf started his PhD under the supervision of Bob Mugerauer. After his departure, Steven Moore kindly took him under his wings. Ralf studied radically innovative approaches towards sustainability and conducted one case study about the amazing mobility concept in the Belgian city of Hasselt and the regionalization of food supplies near Munich, Germany. The title of his dissertation was Co-Evolution Toward Sustainable Development: Neither Smart Technologies nor Heroic Choices, and it underlines the importance of understanding successful innovation as a synchronization between social and technical change. Ralf is currently Senior Lecturer in Architectural Studies at the Manchester Architecture Research Centre, UK, where he mainly teaches 2nd year architecture students in a course called “Sustainable Urbanism” and supervises BArch dissertation students and PhD students. Most of his time is dedicated to research about Multi-Faith Spaces, Zero-Carbon Homes and the thermal comfort of older people.