Book excerpt: Climate change will bring great suffering to communities, individuals and ecosystems. Those least responsible for the problem will suffer the most. Justice demands urgent action to reverse its causes and impacts. In this provocative new book, Paul G. Harris brings together a collection of original essays to explore alternative, innovative approaches to understanding and implementing climate justice in the future. Through investigations informed by philosophy, politics, sociology, law and economics, this Research Agenda reveals how climate change is a matter of justice and makes concrete proposals for more effective mitigation.