"Sustainability Governance and Hierarchy is an inspiring collection of essays in the broader field of environmental social sciences. Drawing on empirically grounded work and theoretical reflection the contributions of this volume provide a valuable resource for teaching and research activities."Tim Freytag, University of Freiburg"With this volume, Philippe Hamman brings together original and timely contributions from excellent scholars. The focus on governance and sustainability, documenting the ways in which public and private actors explore new forms of engagement and redefine their legitimacy, provides an impressive overview and a comprehensive understanding of society/nature relationships in European cities."Pierre Hamel, Université de Montréal"Sustainability is a popular issue which can often produce misunderstandings, having different meanings on an international level. Philippe Hamman's book is a major resource for experts, citizens and policy makers trying to work towards a sustainable Europe."Maurice Blanc, Urban Institute, Strasbourg Univesrity