E.P.A. Is Said to Draft a Plan to End Its Ability to Fight Climate Change

The Trump administration has drafted a plan to repeal a fundamental scientific finding that gives the United States government its authority to regulate greenhouse-gas emissions and fight climate change, according to two people familiar with the plan.

The proposed Environmental Protection Agency rule rescinds a 2009 declaration known as the “endangerment finding,” which scientifically established that greenhouse gases like carbon dioxide and methane endanger human lives.

That finding is the foundation of the federal government’s only tool to limit the climate pollution from vehicles, power plants and other industries that is dangerously heating the planet.

The E.P.A. proposal, which is expected to be made public within days, also calls for rescinding limits on tailpipe emissions that were designed to encourage automakers to build and sell more electric vehicles. Those regulations, which were based on the endangerment finding, were a fundamental part of the Biden administration’s efforts to move the country away from gasoline-powered vehicles. The transportation sector is the largest source of greenhouse gas emissions in the United States.

The E.P.A. intends to argue that imposing climate regulations on automakers poses the real harm to human health because it would lead to higher prices and reduced consumer choice, according to the two people familiar with the administration’s plan. They asked to remain anonymous because they weren’t authorized to discuss the draft proposal.

The draft proposal could still undergo changes. But if it is approved by the White House and formally released, the public would have an opportunity to weigh in before it is made final, likely later this year.

Molly Vaseliou, a spokeswoman for the E.P.A., did not confirm the details of the plan. In a statement she said the E.P.A. sent the draft proposal to the White House on June 30, and that it “will be published for public notice and comment once it has completed interagency review and been signed by the Administrator.”

If the Trump administration is able to repeal the endangerment finding, it would not only erase all current limits on greenhouse gas pollution from cars, factories, power plants and other sources. It would prevent future administrations from trying to tackle climate change, with lasting implications.

Since taking office, President Trump has abandoned U.S. efforts to tackle global warming. He also has moved to roll back virtually every federal policy aimed at curbing greenhouse gases from the burning of oil, gas and coal. His administration has encouraged more production and use of fossil fuels while stifling the growth of clean energy and electric vehicles.

In calling to repeal the endangerment finding, the draft E.P.A. rule does not appear to focus on the science or try to make the case that fossil fuels aren’t warming the planet.

Instead, it argues that the E.P.A. overstepped its legal authority under the Clean Air Act by making a broad finding that greenhouse gas emissions endanger the public welfare. It makes the case that the E.P.A. administrator has limited power that apply only to specific circumstances.

Joseph Goffman, who led the air office at the E.P.A. under the Biden administration, said the rule would all but certainly face legal challenges if it is finalized.

He said the Trump administration’s proposed rule conflicts with the 2007 Supreme Court ruling in Massachusetts v. E.P.A., a landmark case that found for the first time that greenhouse gases were a pollutant under the Clean Air Act. That led the E.P.A. to make the finding in 2009 that said that six greenhouse gases were harming public health.

In more than 200 pages, the E.P.A. at that time outlined the science and detailed how increasingly severe heat waves, storms and droughts were expected to contribute to higher rates of death and disease.

Maxine Joselow contributed reporting.