The concept of environmental racism emerged in the United States in the 1980s to refer to the socially uneven distribution of pollution and environmental resources along racial lines. The term “environmental justice” initially referred to the movement that arose to confront environmental racism, but has since expanded to encompass multiple forms of environmental inequities and problems. Environmental racism now refers to both a mobilizing framework and a field of scholarly research. Three strands of research can be identified under the category of environmental racism: research on questions of equity and the distribution of pollution and hazards; work on the politics and strategies of the environmental justice movement; and writing on the relationship between race and the environment more generally.