The Trump Administration Just Legalized the Destruction of Endangered Species Habitat. Fifty Years of Conservation Law Undone in a Friday Afternoon Rule.
The Endangered Species Act was signed into law in 1973 by Richard Nixon. Nixon. The man the Republican Party has spent fifty years pretending not to remember. The law passed the Senate 92-0. It passed the House without a recorded dissent. It was, at the moment of its passage, one of the least controversial major pieces of legislation in American history. Protecting species from extinction was not then a partisan position. It was a consensus acknowledgment that the natural world had value beyond its extractability, and that the United States government had an obligation to prevent its own citizens and industries from erasing parts of it forever.
On Friday, the Trump administration finalized a rule that guts the most important protection the Act contains. The rule eliminates the regulatory definition of “harm” that has governed enforcement of the ESA for the past forty-five years.
For decades, the government defined harm broadly to include encroachments on places with threatened and endangered animals. The change would allow oil and gas drilling, mining, logging and other development on critical wildlife habitats so long as the animals themselves aren’t killed or injured.
You can destroy a bald eagle’s nest. You can clearcut a forest where the last breeding population of a critically endangered woodpecker lives. You can drain a wetland where an endangered frog breeds. You can do all of this legally now, under federal law, as long as you don’t personally, directly, physically kill the animal while you’re doing it.
The animal will die. The species will decline toward extinction. But the harm will not be harm. Because the administration said so.
What the Definition Actually Said
The rule repealed a regulatory definition of “harm” that included “habitat modification or degradation where it actually kills or injures wildlife by significantly impairing essential behavioral patterns, including breeding, feeding or sheltering.”
That language was not invented by environmental lawyers. It was grounded in fifty years of ecological science. The scientific consensus on what causes species to go extinct is not ambiguous. Habitat loss is the primary driver of extinction — not poaching, not direct killing, not natural disaster. When you destroy the place where an animal breeds, feeds, and shelters, you kill the animal. You just do it more slowly and with more lawyers involved.
In 1995, the Supreme Court upheld the “harm” definition’s inclusion of habitat destruction. As the ruling explained, that definition was supported by the ordinary meaning of “harm,” the purpose of the ESA, and multiple indications of congressional intent. In response to the proposed rulemaking last April, hundreds of thousands of Americans submitted public comments opposing the elimination of habitat protections. U.S. Senators, tribes, scientists, legal experts, and environmental groups also opposed the rule.
The administration went ahead anyway.
What It Means
Under the rule change, the Interior Department removed the definition of “harm” under the Endangered Species Act. Since 1981, “harm” has been defined as any action that hurts or kills species, including modifying or degrading an imperiled species’ habitat. The administration now leaves “harm” undefined, meaning destroying a species’ nest or habitat would no longer be considered illegal.
Undefined. The central enforcement mechanism of the most important wildlife protection law in American history is now undefined. The word that determines whether an action is legal or illegal, whether a permit is required or not, whether a project can proceed or must be modified — that word now has no regulatory meaning. The companies that want to drill, log, and mine in critical habitat now face no legal definition of what they are prohibited from doing. When there is no definition of harm, nothing is harmful.
Environmentalists warned the move could cause some species to go extinct by opening the door to habitat destruction. Industry representatives and their Republican allies have long argued the landmark 1973 environmental law is wielded too broadly, to the detriment of economic growth. Administration officials said they were returning the law to its original intent.
Returning the law to its original intent. Interior Secretary Doug Burgum said: “For years, federal agencies abused the ESA to obstruct lawful land use and burden American families and businesses. That approach turned routine activity into a regulatory trap, drove up costs that impacted people’s lives, and expanded federal authority beyond what Congress intended. This action restores common sense, respects private property, provides much-needed certainty for landowners and follows the statute Congress actually passed.”
Routine activity. Logging an old-growth forest where endangered species breed is routine activity. Drilling for oil in critical habitat is lawful land use. The burden on American families and businesses from not being permitted to destroy the last habitat of a species on the brink of extinction — that burden has now been lifted. The certainty provided to landowners is the certainty that the word “harm” means nothing and they may proceed.
The Endangered Species Act is credited with bringing back iconic animals — including the bald eagle, American alligator and California condor — from the brink of extinction.
The bald eagle is the national symbol of the United States. It was on the brink of extinction. The Endangered Species Act, with its broad definition of harm including habitat destruction, brought it back. The administration that put the bald eagle on its rally hats has now eliminated the legal protection that saved it.
The God Squad and the Gulf
The habitat definition is not the only attack. On March 31, 2026, the Endangered Species Committee — also known as the “God Squad” — voted unanimously to exempt oil and gas drilling activity in the Gulf of Mexico from restrictions under the Endangered Species Act on the basis of a never-used defense provision of the act.
The God Squad. That is its actual informal name, given by environmentalists when it was created in 1978 as a safety valve for cases of genuine national emergency. It has convened three times in the history of the Act. It has granted one exemption. The Trump administration convened it to give the oil industry a pass in the Gulf — a decision that has the potential to wipe out two dozen marine species.
Two dozen marine species. Exempted. So that oil drilling can proceed in the Gulf of Mexico. With no legal definition of harm remaining to constrain what happens to the habitat those species depend on.
What This Is
Earthjustice attorney Kristen Boyles said: “For the first time ever, a presidential administration now claims that species protected by the Endangered Species Act shouldn’t be safe from habitat modification that destroys where they live, raise their young, or search for food. There is no support for the Trump Administration’s rule — no scientific support, no legal support, no public support.”
Aaron Weiss, the executive director of the Center for Western Priorities, said: “This is one of the most horrific attempts to harm wildlife in American history and a gift to the oil barons and foreign mining companies.”
Ben Greuel, wildlife campaign manager at the Sierra Club, said: “For more than four decades, the definition of ‘harm’ recognized a simple truth: If you destroy the places wildlife need to survive, you are putting species on a path to extinction. This rule ignores that reality in an unlawful attempt to open the door for corporate polluters to degrade vitally important habitats.”
The rule was finalized on a Friday afternoon in July, in the middle of a World Cup and a news cycle crowded with Iran war updates and housing bill drama and election commission firings and ICE shootings. The administration has learned the lesson of the Friday news dump — put the most damaging things out when the fewest people are paying attention, and the fewest people will notice until it’s too late.
The Endangered Species Act passed the Senate 92-0 in 1973. Zero senators voted against protecting endangered species from harm. On Friday afternoon in July 2026, the administration redefined harm to mean nothing, and the oil companies got exactly what they paid for.
The bald eagle survived because the law said destroying its habitat was harm. The law now says nothing of the kind.