This book draws on recent developments across a range of perspectives including psychoanalysis, narrative studies, social practice theory, posthumanism and trans-species psychology, to establish a radical psychosocial alternative to mainstream understanding of environmental problems. Only by addressing the psychological and social structures maintaining unsustainable societies might we glimpse the possibility of genuinely sustainable future. The challenges posed by the reality of human-caused environmental problems are unprecedented. Understanding how we respond to knowledge of these problems is vital if we are to have a hope of meeting this challenge. Psychology and the social sciences have been drafted in to further this understanding, and inform interventions encouraging sustainable behaviour. However, to date, much of psychology has appeared happy to tinker with individual behaviour change, or encourage minor modifications in the social environment aimed at nudging individual behaviour. As the ecological crisis deepens, it is increasingly recognised that mainstream understandings and interventions are inadequate to the collective threat posed by climate change and related ecological crises.