For nearly 20 years, the EPA has regulated greenhouse gases. No more.

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What is the significance of the repeal of the Endangerment Finding?

Dana Taylor 0:04
Last week, the Trump administration announced it was repealing a 2009 determination called the Endangerment Finding. That finding had been the basis by which the EPA had assumed the right to regulate greenhouse gases for nearly 20 years. How will its repeal impact Americans and is the Supreme Court likely to join this heated debate? Hello and welcome to USA Today's The Excerpt. I'm Dana Taylor. Today is Wednesday, February 18th, 2026. Here to help us unpack some of the legal, political, and scientific issues relating to a warming climate is Michael Girard, one of the foremost environmental lawyers in the country and a law professor at Columbia University, where he's the founder and director of the groundbreaking Sabin Center for Climate Change Law.
Dana Taylor 0:55
Thank you so much for coming on, Michael.
Michael Gerrard 0:57
Good to be with you.
Dana Taylor 0:58
Since taking office in January of 2025, Lee Zeldin, the EPA administrator under President Donald Trump, has either repealed or significantly weakened dozens of Biden-era environmental regulations. Can you please tell me about some of the most significant ones and what their impact has been?
Michael Gerrard 1:19
Well, he's weakened the regulations on clean cars. There had been significant rules that required cars to be more energy efficient. California had the ability to adopt stronger standards, which were driving a push toward electric vehicles in California and other states. So all of that has been wiped out.

How have recent changes to EPA regulations affected environmental standards?

Michael Gerrard 1:39
They've also taken away the standards for cleaning up power plants.
Dana Taylor 1:43
As you know, Zeldin has also canceled many of the project grants that the EPA has traditionally funded. What are some of the biggest ones?
Michael Gerrard 1:51
There were various programs to help low-income and minority communities to have rooftop solar, to have more energy efficiency, other areas which would reduce fossil fuel use. A lot of those have been wiped out, although much of that is being challenged in court, and we don't yet know what the final outcome will be.
Dana Taylor 2:09
The big news last week was the repeal of the endangerment finding. Can you briefly give me a little context on what this finding is and how it came to be?
Michael Gerrard 2:20
So Congress passed the Clean Air Act in 1970, the major federal law for cleaning up the air, which has been very successful for lots of different kinds of pollutants. But EPA, under President George W. Bush, was refusing to regulate greenhouse gases under the Clean Air Act. 2007, the US Supreme Court issued a landmark decision called Massachusetts versus EPA that said that EPA did have the power to regulate greenhouse gases if they find that it poses an endangerment to public health and welfare. So EPA, under President Obama, did issue this finding, this endangerment finding that greenhouse gases do endanger public health and welfare. That became the basis for lots of regulations issued under the Obama and Biden administrations.
Michael Gerrard 3:07
And now EPA under President Trump has canceled that.
Dana Taylor 3:11
Michael, what's the Trump administration's main legal justification for these changes?

What historical context led to the Endangerment Finding?

Michael Gerrard 3:17
We used to think that they were going to argue that the science of climate change was too unsettled, but they seem to have dropped that argument wisely. And instead, they're saying that the regulation of greenhouse gases is such a major thing with important political and economic significance that EPA can't do it without explicit congressional authorization, even if the words of the Clean Air Act would seem that EPA could do that. Another major argument is that the emissions of greenhouse gases from motor vehicles in the U.S. are such a small part of the global climate problem that it's not going to make any difference. Although, in fact, if U.S. transportation emissions were a country, it would be the sixth largest greenhouse gas emitting country in the world.
Dana Taylor 4:08
Across the U.S., there's quite a bit of other litigation happening at the state and local level in relation to global warming and climate change. We spoke with some youth activists in Montana a couple of years ago who sued the Bureau of Land Management and won in order to curtail that state's oil and gas leasing process.

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