NOT long ago I wrote an essay on how to talk about environmental issues with conservatives. Talk persuasively, that is, not confrontationally. A conservative promptly replied that I was afflicted with “fundamental ignorance,” and possibly worse. The gist of it was that conservatives are already environmentalists, and the rest of us are just too stupid to recognize it. I put on my cheerfully positive face and suggested that he amplify his point by listing 10 pro-environment actions by conservatives in this century. (O.K., maybe that was my passive-aggressive face, given that George W. Bush was president for eight of those 16 years.) He replied with more name-calling.

This is a shame, because conservatives used to be almost by definition conservationists, focused on preserving our shared heritage from destructive influences. You can, in fact, date the rise of the conservation movement as a political force in this country to a December 1887 dinner party of wealthy big game hunters, largely Republicans, hosted in a Madison Avenue house by Theodore Roosevelt (still a hero to many modern conservatives, despite certain progressive leanings). He and his guests that night formed the Boone and Crockett Club, dedicated to preservation and management of game.

Putting to work their considerable social and political clout, as well as their money, they went on to save the bison from extinction, greatly expand the national park system, and help establish both the National Wildlife Refuge System and the United States Forest Service. The Lacey Act, still our most important law against wildlife crime, was largely their doing. Ducks Unlimited, a Boone and Crockett offshoot, became an early force for wetland conservation.

This natural link between conservatives and conservation lasted through much of the 20th century. Conservatives may complain about oil companies being shut out of the Arctic National Wildlife Refuge, but most of the credit for protecting that habitat belongs to Dwight D. Eisenhower, who also signed the nation’s first air pollution control law. Richard M. Nixon, not otherwise a candidate for sainthood, changed the way the nation lives, breathes and does business, establishing the Environmental Protection Agency and enacting the Clean Air Act and the Endangered Species Act, among other major environmental initiatives. George H. W. Bush, finally, began to take conservation in a new market-based direction, pushing through a cap-and-trade system in 1990 that enabled industry to reduce sulfur dioxide emissions, which causes acid rain, far more quickly and cheaply than anyone imagined possible.