The SAGE Encyclopedia of Environmental Justice is a three-volume reference that brings together diverse voices, ideas, and histories shaping the field of environmental justice. While the term itself gained prominence in the 1990s, the core issues—unequal environmental burdens shaped by race, class, and gender—have deep historical roots. Featuring 300 to 450 entries, this comprehensive work spans case studies, legal frameworks, key events, and notable figures from around the world. Grounded in the U.S. experience, where the modern movement gained traction, it also draws critical connections to global efforts, highlighting how environmental justice is defined and pursued across regions and cultures. Designed for students, researchers, policymakers, and activists, this resource provides the context and insight needed to understand environmental justice as both a scholarly field and a global call to action.