The document discusses the concept of environmental justice. It notes that Robert Bullard is considered the "father" of environmental justice for his work campaigning against environmental racism in the 1980s US. It describes how environmental justice seeks equitable treatment and involvement of all people in environmental programs, laws, and policies. It also discusses the distributive, procedural, and precautionary principles of environmental justice. Finally, it mentions how the concept has expanded to include generational and international environmental justice issues.