Carl Folke,^* Johan Rockström<sup>**


*</sup>Carl Folke () is Professor in natural resource management, Science Director of the Stockholm Resilience Centre at Stockholm University and Director of the Beijer Institute of Ecological Economics of the Royal Swedish Academy of Sciences. His research is on the role that living systems at different scales play in social and economic development and how to govern and manage for resilience in integrated social-ecological systems. Address: Stockholm Resilience Centre, Stockholm University, Stockholm 10691, Sweden. Address: The Beijer Institute of Ecological Economics, The Royal Swedish Academy of Sciences, P.O. Box 50005, Stockholm 10691, Sweden. e-mail: carl.folke@beijer.kva.se
^**Johan Rockström is Professor in natural resource management and Executive Director of the Stockholm Resilience Centre at Stockholm University and of the Stockholm Environment Institute. He research is on agricultural water management, watershed hydrology, global water resources, eco-hydrology, resilience and global sustainability. Address: Stockholm Environment Institute and Stockholm Resilience Centre, Stockholm University, Stockholm 10691, Sweden.