Spatial planning defines how men use one of the most important and scarce resources on Earth: land. Planners therefore play a key role in countering or deepening the current ecological crisis. To foster ecological transitions, planning scholars and practitioners need to be equipped with sound theories and practical tools. To this end, this book advocates a re-foundation of spatial planning under the paradigm of “ecological rationality”, based on the revaluation of early pioneers of ecological planning and mutual fertilization with different disciplines, including decision-making...