This book rethinks the boundaries of transitional justice, urging scholars and practitioners to confront the often-overlooked nexus between mass violence and ecological harm. Through an in-depth analysis of the field’s limitations—such as its anthropocentric legalism, neo-colonial practices, and alignment with neoliberalism—the book critiques the historical marginalization of Nature in transitional justice discourse and practice. It argues that ignoring environmental harm not only undermines the possibility of holistic justice but perpetuates structural violence and inequality. In response, the book sketches a ‘greener’ transitional justice, integrating principles from environmental justice, Indigenous knowledge systems, and ecocentric perspectives. It explores the possibilities of recognizing Nature as a victim of mass violence, adapting existing mechanisms to incorporate environmental harm, and fostering transformative approaches premised on the interdependence of human and ecological well-being. This book is written for students, researchers, and practitioners of transitional justice and fields related to conflict transformation, peacebuilding, environmental protection, and development.