The EPA announced plans today to overturn a key scientific finding that it has used to regulate

carbon emissions and climate pollution since 2009.

It's the latest in the Trump administration's efforts to roll back federal regulations,

and if upheld, could undo Obama and Biden-era climate policies.

Stephanie Sy, joins us with more.

Omna, the EPA is specifically targeting the endangerment finding, which determine that pollutants caused by burning fossil fuels

endanger humans and can therefore be regulated under the Clean Air Act. It's been the basis

for the government's fight against climate change for the last 15 years.

During an appearance at a truck dealership in Indiana, EPA administrator Lee Zeldon

accused previous administrations of twisting the Clean Air Act, resulting in what he said were

more than a trillion dollars in regulations over the years.

He said President Trump was given a mandate to change that.

They elected President Trump, President of the United States.

That was the will of the American public.

And when they voted, they asked for, demanded that an agency like the EPA would be cognizant of their economic concerns,

that all agencies would be applying common sense, that we at EPA must choose to both protect

the environment and grow the economy, that it's not a binary choice.

Joining me now for more on what this means and how it will affect current regulations,

I'm joined by Ben Geiman, energy reporter for Axios.

Ben, thank you for joining the news hour.

So first off, can the EPA do this, just rescind the entire legal basis for regulating emissions? They can certainly try. Now, this is a proposal that went out today. If and when it was,

if and when it is finalized, it will certainly be subject to very vigorous legal challenges.

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