This book is about a subject that Michael Greenberg has worked on and lived with for almost forty years. He was brought up in the south Bronx at a time when his neighborhood suffered from terrible air and noise pollution, and domestic waste went untreated into the Hudson River. For him, the National Environmental Policy Act (NEPA) was a blessing. It included an ethical position about the environment, and the law required some level of accountability in the form of an environmental impact statement, or EIS. After forty years of thinking about and working with NEPA and the EIS process, Greenberg decided to conduct his own evaluation from the perspective of a person trained in science who focuses on environmental and environmental health policies. This book of carefully chosen real case studies goes beyond the familiar checklists of what to do, and shows students and practitioners alike what really happens during the creation and implementation of an EIS.