This book investigates the broader climate movement to contextualise the role played by its climate justice wing, focusing specifically on the theoretical and practical contributions of ecosocialists. Croeser begins by critically analysing the root causes of anthropogenic climate change and identifies the origins and development of the current climate movement within civil society. She then focuses on the climate justice movement, analysing the ways in which anthropogenic global warming may be challenged in a way that is socially just. Overall, this book provides further insight into the effectiveness of ecosocialist theory and activism in the context of existing global, national and local power relationships.