Mr. Train was widely regarded as one of the most important American conservationists in the past half-century. He helped to craft some of the nation’s enduring environmental laws and to establish the agencies that continue to shape U.S. environmental policy.
While environmental politics today often divides sharply along party lines, with Democrats pushing for greater environmental regulation and Republicans seeking to scale it back, Mr. Train embodied an earlier era in which conservatives embraced the label “environmentalist.”
The son of a Navy admiral and nephew of jurist Augustus Hand, Mr. Train was a Republican and self-described conservative appointed by President Dwight D. Eisenhower to the bench of the U.S. Tax Court in 1957. Around that time, he and his wife took two safari expeditions to East Africa. He shot an elephant and was chased by a rhinoceros. The experience proved momentous.
“There were harshness and brutality, thirst, and fear, and pain, and sudden death, but also peace and innocence,” he wrote of those early travels in “Politics, Pollution, and Pandas: An Environmental Memoir” (2003). “It was the earth in the springtime of life, when all seemed fresh and young. For us, it was romance pure and simple.”
He started an African wildlife foundation and, in 1965, left the Tax Court to take over the presidency of the Conservation Foundation, a nonprofit research and education organization.
Four years later, under newly elected President Richard M. Nixon, Mr. Train was named undersecretary of the Interior Department. In 1970, he became the first chairman of the Council on Environmental Quality, an advisory group serving the president and other top officials.
The EPA was launched in 1970 with William D. Ruckelshaus as its administrator. When Ruckelshaus left to take over the FBI during the Watergate scandal fallout, Mr. Train was tapped to lead the environmental agency.
He remained its steady hand through the end of the Gerald R. Ford presidency in January 1977 and was credited with helping shape some of the nation’s landmark environmental laws, including the Endangered Species Act, the Clean Air Act, the Clean Water Act, and the National Environmental Policy Act.
From 1978 to 1985, he led WWF-U.S., giving him a platform from which he could advocate environmental protections worldwide. He pushed for two landmark international conventions, one of which established the concept of World Heritage sites, and another of which regulates international trade in endangered species.
Thomas E. Lovejoy, a George Mason University professor of environmental science and policy, called Mr. Train “the key person in the Nixon-Ford years who built the modern environmental laws and institutions of the American government. His fingerprints were everywhere.”