Sign In or Create an Account.

By continuing, you agree to the Terms of Service and acknowledge our Privacy Policy

Climate

What We Know About Trump’s Endangerment Finding Repeal

The administration has yet to publish formal documentation of its decision, leaving several big questions unanswered.

Donald Trump and Lee Zeldin.
Heatmap Illustration/Getty Images

President Trump announced on Thursday that he was repealing the Environmental Protection Agency’s scientific determination that greenhouse gases are dangerous to human health and the natural world.

The signal move would hobble the EPA’s ability to limit heat-trapping pollution from cars, trucks, power plants, and other industrial facilities. It is the most aggressive attack on environmental regulation that the president and his officials have yet attempted.

The move, which was first proposed last summer, has major legal implications. But its importance is also symbolic: It brings the EPA’s official view of climate change much closer to President Trump’s false but long-held claim that anthropogenic global warming — which scientists have long affirmed as a major threat to public health and the environment — is in fact a “con job,” “a hoax,” and a “scam.”

While officials in the first Trump administration frequently sought to undermine climate regulation, arguing that the government’s climate rules were unnecessary or a waste of time and money, they did not formally try to undo the agency’s scientific determination that heat-trapping pollution was dangerous.

The move is only the most recent of a long list of attacks on environmental protections — including the partial rollback of the country’s first climate law, the Inflation Reduction Act, enacted last summer — that Trump and congressional Republicans have overseen since taking office last January.

The repeal has few near-term implications for utilities, clean energy companies, or automakers because the Trump administration has already suspended rules limiting air pollution from vehicles and the power sector. But it could shape the long-term direction of American climate and energy policy.

Several environmental and public health organizations, including the American Lung Association and the Environmental Defense Fund, have vowed to challenge the move in court.

If the Supreme Court eventually rules in favor of the Trump administration, then it would hamstring the ability of any future president — Republican or Democrat — to use the EPA to slow climate change or limit greenhouse gas pollution. The EPA has not yet published the legal documents formalizing the repeal.

Here is what we know — and don’t know — about the repeal for now:

  • The administration is describing it as “the single largest deregulatory action in American history.” Trump largely skirted the environmental implications of his move — although he did say, somewhat nonsensically, that the EPA’s Obama-era endangerment finding was the basis for “the Green New Deal.”
  • EPA Administrator Lee Zeldin stressed that the repeal would bring quality-of-life improvements to new cars. He claimed that the repeal would lead automakers to omit the “automatic stop-start” technology that shuts off car engines at stoplights. (It’s not clear why the EPA couldn’t make this change on its own under existing law.) An EPA press release described this feature as “almost universally hated.”
  • This queues up a Supreme Court battle. The EPA’s press release says it concluded that the Clean Air Act does not give the agency authority to regulate greenhouse gases from vehicles — which is the opposite of the opinion the Supreme Court reached in the landmark 2007 case Massachusetts vs. EPA. The agency contends that more recent court decisions warranted reevaluation.
  • Neither Trump nor Zeldin referred to the Department of Energy’s failed climate science report. The Energy Department had initially sought to undermine the greenhouse gas endangerment finding by publishing a contrarian report about climate science. The experience was an embarrassment. Secretary Chris Wright’s summary of the report’s findings was not in line with its conclusions and bordered on open climate denial. The Energy Department ultimately chose to disband the group behind the report, which was lambasted by federal scientists, rather than face a lawsuit arguing that the group had been unlawfully convened. It’s still unclear whether the administration will cite the report or make an argument about climate science in its final decision.
Editor’s note: This story has been updated to describe the implications for businesses and utilities.

You’re out of free articles.

Subscribe today to experience Heatmap’s expert analysis 
of climate change, clean energy, and sustainability.
To continue reading
Create a free account or sign in to unlock more free articles.
or
Please enter an email address
By continuing, you agree to the Terms of Service and acknowledge our Privacy Policy
Climate Tech

There’s More Than One Way to Build a Wind Turbine

Startups Airloom and Radia looked at the same set of problems and came up with very different solutions.

Possible future wind energy.
Heatmap Illustration/Radia, Airloom, IceWind, Getty Images

You’d be forgiven for assuming that wind energy is a technologically stagnant field. After all, the sleek, three-blade turbine has defined the industry for nearly half a century. But even with over 1,000 gigawatts of wind generating capacity installed worldwide, there’s a group of innovators who still see substantial room for improvement.

The problems are myriad. There are places in the world where the conditions are too windy and too volatile for conventional turbines to handle. Wind farms must be sited near existing transportation networks, accessible to the trucks delivering the massive components, leaving vast areas with fantastic wind resources underdeveloped. Today’s turbines have around 1,500 unique parts, and the infrastructure needed to assemble and stand up a turbine’s multi-hundred-foot tower and blades is expensive— giant cranes don’t come cheap.

Keep reading...Show less
Green
AM Briefing

Georgia on My Mind

On electrolyzers’ decline, Anthropic’s pledge, and Syria’s oil and gas

The Alabama statehouse.
Heatmap Illustration/Getty Images

Current conditions: Warmer air from down south is pushing the cold front in Northeast back up to Canada • Tropical Cyclone Gezani has killed at least 31 in Madagascar • The U.S. Virgin Islands are poised for two days of intense thunderstorms that threaten its grid after a major outage just days ago.

THE TOP FIVE

1. Alabama weighs scrapping utility commission elections after Democratic win in Georgia

Back in November, Democrats swept to victory in Georgia’s Public Service Commission races, ousting two Republican regulators in what one expert called a sign of a “seismic shift” in the body. Now Alabama is considering legislation that would end all future elections for that state’s utility regulator. A GOP-backed bill introduced in the Alabama House Transportation, Utilities, and Infrastructure Committee would end popular voting for the commissioners and instead authorize the governor, the Alabama House speaker, and the Alabama Senate president pro tempore to appoint members of the panel. The bill, according to AL.com, states that the current regulatory approach “was established over 100 years ago and is not the best model for ensuring that Alabamians are best-served and well-positioned for future challenges,” noting that “there are dozens of regulatory bodies and agencies in Alabama and none of them are elected.”

Keep reading...Show less
Red
Electric Vehicles

Why the Electric Toyota Highlander Matters

The maker of the Prius is finally embracing batteries — just as the rest of the industry retreats.

The 2027 Highlander.
Heatmap Illustration/Toyota, Getty Images

Selling an electric version of a widely known car model is no guarantee of success. Just look at the Ford F-150 Lightning, a great electric truck that, thanks to its high sticker price, soon will be no more. But the Toyota Highlander EV, announced Tuesday as a new vehicle for the 2027 model year, certainly has a chance to succeed given America’s love for cavernous SUVs.

Highlander is Toyota’s flagship titan, a three-row SUV with loads of room for seven people. It doesn’t sell in quite the staggering numbers of the two-row RAV4, which became the third-best-selling vehicle of any kind in America last year. Still, the Highlander is so popular as a big family ride that Toyota recently introduced an even bigger version, the Grand Highlander. Now, at last, comes the battery-powered version. (It’s just called Highlander and not “Highlander EV,” by the way. The Highlander nameplate will be electric-only, while gas and hybrid SUVs will fly the Grand Highlander flag.)

Keep reading...Show less
Green