This is the story of a visionary leader, Lynton Keith Caldwell, who in the early 1960s introduced the study of the environment and environmental policy at a time when such areas of expertise did not exist. Caldwellwas a principal architect of the National Environmental Policy Act of 1969 andis recognized as the "inventor" of the Act's important environmental impact statement provisions, now emulated around the world. For the next three decades, Caldwell played a leading role in establishing ethics-based environmental policy and administration as major areas of inquiry in the United States and around the world. Through his tireless global travels, writing, and lectures, and his work with the US Senate, the IUCN, UN, and UNESCO, Caldwell became recognized for his contributions to environmental ethics and the development of strong environmental planning and policy. This engrossing biography is based on interviews the author conducted with Caldwell and on unrestricted access to his memorabilia, photos, and records.