This book offers a concise, interdisciplinary introduction to environmental peacebuilding-an emerging field at the nexus of climate change, conflict transformation, and natural resource governance. Tracing the field's evolution from its historical foundations, it not only surveys existing frameworks but also foregrounds the need for integrated, context-sensitive evaluation tools, clarifying how environmental peacebuilding can be assessed in ways that better capture its socio-ecological and conflict-sensitive dynamics. By placing evaluation at the center of the field's conceptual development, the brief addresses a major gap in existing scholarship. Drawing on perspectives from the development and sustainability disciplines, the environmental sciences, the political and policy fields, and the social sciences, as well as from liberal studies that bridge these domains, the brief provides a rich, integrative foundation. Across nine tightly crafted chapters, it explains how environmental cooperation-through shared resource management, inclusive governance, and ecological resilience-can open pathways to conflict prevention, support peace processes, and strengthen long-term stability. It also equips readers with practical, context-specific tools for designing and evaluating interventions. For policymakers, practitioners, and scholars, this volume offers a timely and accessible guide to advancing peace in a warming, resource-constrained world.