Hans Günter Brauch, Adj. Prof. (PD), Free University of Berlin (ret.); chairman of Peace Research and European Security Studies (AFES-PRESS); editor of five English language book series published by SpringerNature; works on peace, security and environment.  Úrsula Oswald Spring, Research Professor, Center for Regional Multidisciplinary Research at the National Autonomous University of Mexico (CRIM–UNAM); former Minister of Ecological Development in the state of Morelos and lead author of the IPCC. John Grin, Professor of Policy Science, Department of Political Science, University of Amsterdam; Co-Director (with M. Glasius) of the Programme Group Transnational Configura-tions, Conflicts and Governance, Amsterdam Institute for Social Science Research (AISSR).   Jürgen Scheffran, Professor, Institute of Geography and Center for Earth System Research and Sustainability (CEN), Universityof Hamburg, Germany; head of the Re¬search Group Climate Change and Security (CLISEC) in the CliSAP Cluster of Excellence.

• From the Contents: Material and Immaterial Cultural Transformation.- A Social Contract for Sustainability.- The Climate Paradox: Policy Declarations and Lack of Implementation; The G-20: Security & Peace Impacts.- Persistence and Transformation of Mindsets: The Canadian Case.- Theories of Transitions to Sustainable Development: Approach of the Dutch Knowledge network of Systems Innovation.