Conservation Groups Launch Legal Battle Over Trump's Redefinition of Wildlife 'Harm'

Conservation Groups Sue Over Major Shift in Endangered Species Protections

A single word sits at the center of one of the most consequential wildlife policy battles in decades. By reinterpreting the word "harm" within the Endangered Species Act, the Trump administration has triggered a wave of lawsuits from environmental organizations and Indigenous tribes who say the change could leave countless protected species vulnerable to extinction.

A Half-Century Definition, Erased Overnight

For more than 50 years, the U.S. Fish & Wildlife Service operated under a clear definition: harming a protected species meant not only physically injuring or killing it, but also destroying or significantly degrading the habitat it depends on for feeding, breeding, and shelter.

That long-standing interpretation has now been officially eliminated. The federal government published the rule change in the federal register, with the new policy set to take effect on September 14.

Secretary of the Interior Doug Burgum defended the decision, saying it "restores common sense, respects private property, provides much-needed certainty for landowners and follows the statute Congress actually passed." NOAA Fisheries echoed this stance, arguing the revised rule would cut unnecessary permitting burdens and reduce compliance costs without weakening core species protections.

Earthjustice and Allies File Suit in Federal Court

Within hours of the rule's publication, the law firm Earthjustice, joined by more than eight other environmental organizations, filed a federal lawsuit in Seattle against the U.S. Fish & Wildlife Service and NOAA Fisheries.

Attorney Kristen Boyles, representing Earthjustice, told reporters the agencies failed to justify such a dramatic departure from established policy. "The agencies haven't explained themselves adequately," she said. "Making this kind of dramatic change doesn't make any legal sense because it goes against the fundamental purpose and spirit of the statute itself."

Boyles also warned that stripping habitat protection from the legal definition of harm would not simplify regulation — it would multiply litigation. Every proposed development project that threatens wildlife habitat could now face individual legal challenges as courts wrestle with competing interpretations of the law.

"The one thing this repeal is going to certainly do is cause complete confusion," she said. "It's going to increase litigation over each and every project proposed that doesn't protect habitat."

Tribal Nations Join the Legal Challenge

The Swinomish Indian Tribal Community and the Squaxin Island Tribe have filed a separate lawsuit in U.S. District Court, arguing that the rule change poses a direct threat to salmon populations in Puget Sound — fish that are both culturally and economically vital to tribal life.

The tribes state in their legal complaint that habitat degradation has been the primary cause of salmon stock decline in the region. Removing habitat from the legal definition of harm, they argue, would strip away the very protections that salmon need to survive.

Industry Voices Back the Administration

Not everyone opposes the change. Several industry groups voiced support when the revision was first proposed last year. The American Petroleum Institute argued the original definition created unjustified regulatory obstacles, while the Associated General Contractors of America praised the administration's efforts to reduce what they called unnecessary compliance requirements.

Holly Hopkins of the American Petroleum Institute said her organization remains committed to "commonsense ESA policies that both protect wildlife and support American energy leadership."

The Endangered Species Act: A Brief History

President Richard Nixon signed the Endangered Species Act into law in 1973 with bipartisan support, at a time when Americans had grown alarmed by the rapid decline of species ranging from whales and wolves to whooping cranes. The law was designed to function as emergency intervention for species on the brink.

Holly Doremus, a professor of environmental law at UC Berkeley, describes the original intent using a medical analogy: "Just as a patient would not be expected to spend the rest of their life in the emergency room, species were supposed to be given special medical attention and treatment to recover."

The law explicitly prohibited the "taking" of endangered species, a term the Fish & Wildlife Service defined broadly to include harassment, pursuit, hunting, wounding, and killing. Critically, the definition of "harm" within that framework extended to habitat alteration — recognizing that destroying the places where animals live, feed, and reproduce is functionally equivalent to harming the animals themselves.

The 1995 Supreme Court Precedent

The habitat-as-harm interpretation was tested dramatically in the Pacific Northwest during the 1990s, when the timber industry challenged federal restrictions on logging in areas serving as critical habitat for the endangered northern spotted owl. Timber companies argued those restrictions caused significant financial harm and violated their rights.

The case, Babbitt v. Sweet Home Chapter of Communities for a Great Oregon, reached the Supreme Court. In a 6-3 ruling in 1995, the justices upheld the principle that habitat modification constitutes harm under the Endangered Species Act, concluding that habitat destruction inevitably threatens protected species.

Justice Antonin Scalia dissented, arguing that extending the word "harm" to cover indirect effects through habitat modification stretched the term beyond its reasonable meaning. His dissent has since become a touchstone for those who favor a narrower reading of the law — and supporters of the Trump administration's rule change frequently cited Scalia's opinion in public comments last year.

Scientists and Conservationists Sound the Alarm

For wildlife advocates, the science is unambiguous. Tara Zuardo, a senior campaigner at the Center for Biological Diversity — one of the co-plaintiffs in the Earthjustice lawsuit — says habitat loss is the leading driver of extinction across virtually every species category.

"Whether that's grazing, whether that's pollution, whether that's climate change — if you're no longer counting that as harm under the law, you're not going to be able to protect any of the listed species," Zuardo said.

Boyles put it even more bluntly. Separating the concept of harm from habitat destruction, she argued, is "biological nonsense" — a legal maneuver disconnected from the ecological reality of what it actually takes to keep a species alive.

With the rule set to take effect in September and multiple lawsuits already in motion, the future of wildlife habitat protection in the United States will almost certainly be decided in the courts.