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Home » News » News » Maine Joins Lawsuit Against Trump Administration Over Reversal of 2009 Greenhouse Gas Declaration
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Maine Joins Lawsuit Against Trump Administration Over Reversal of 2009 Greenhouse Gas Declaration

Libby PalanzaBy Libby PalanzaMarch 22, 2026Updated:March 22, 202610 Comments4 Mins Read1K Views
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A coalition of states and cities, including Maine, has filed a lawsuit against the Trump Administration over its February reversal of a 2009 declaration that has served as the basis for the government’s authority to regulate greenhouse gas emissions.

Known as the Endangerment Finding, this 2009 declaration states that the “current and projected concentrations” of greenhouse gases “threaten the public health and welfare of current and future generations.”

This stemmed from a 2007 Supreme Court ruling that greenhouse gases are a category of air pollutant covered by the Clean Air Act, opening the door for the EPA to determine under section 202(a) if they can reasonably be understood to pose a threat to “public health or welfare.”

By repealing the agency’s prior declaration, the federal government has significantly less authority to promulgate and enforce climate-related regulations.

[RELATED: EPA Looks to End Clean Air Act Regulation of Greenhouse Gas Output by Reversing Obama-Era Declaration]

Filed in the U.S. Court of Appeals for the District of Columbia Circuit, Thursday’s lawsuit argues that the Administration’s decision to rescind the finding represents an abandonment of the federal government’s responsibility to the American people.

“Instead of helping Americans face our new reality, the Trump administration has chosen denial, repealing critical protections that are foundational to the federal government’s response to climate change,” said New York Attorney General Letitia James.

“Climate change is real, and it’s already affecting our residents and our economy,” said Massachusetts Attorney General Joy Campbell. “When the federal government abandons the law and the science, everyday people suffer the consequences.”

In total, 24 states, ten cities, and five counties have signed onto the lawsuit.

Aside from Maine, New York, and Massachusetts, the lawsuit was also joined by Arizona, California, Colorado, Connecticut, Delaware, Hawaii, Illinois, Maryland, Michigan, Minnesota, New Jersey, New Mexico, Nevada, North Carolina, Oregon, Rhode Island, Vermont, Virginia, Washington and Wisconsin, as well as the District of Columbia and U.S. Virgin Islands.

The Pennsylvania Department of Environmental Protection also signed onto the case, along with the cities of Albuquerque, Boston, Chicago, Cleveland, Columbus, Denver, Los Angeles, New York, and San Francisco, alongside five counties in California, Colorado, Texas, and Washington state.

[RELATED: Trump Administration to Reverse Obama-Era Declaration Underpinning Federal Greenhouse Gas Emission Regulation]

Spokeswoman for the federal Environmental Protection Agency (EPA) Brigit Hirsch said the latest lawsuit was “not about the law or the merits of any argument.” Instead, she contended, the plaintiffs “are clearly motivated by politics.”

According to Hirsch, the EPA “carefully considered and reevaluated the legal foundation” of the 2009 finding in light of recent court decisions. Hirsch specifically pointed toward a 2022 Supreme Court ruling that limited how the clean air law could be used to reduce carbon dioxide emissions from power plants, the Associated Press reported.

[RELATED: Maine Attorney General Aaron Frey Gripes About Trump Administration’s Effort to Roll Back Greenhouse Gas Emission Regulations]

Last summer, Maine Attorney General Aaron Frey made clear his dissatisfaction with the Trump Administration’s efforts to rescind the declaration, calling the move an attempt to “def[y] science, law, and reality.”

“The science is clear that greenhouse gas emissions cause significant harm to public health and welfare, which is increasingly borne out in Maine by impacts including sea level rise, extreme storms, flooding, and disrupted coastal habitats and fisheries,” he said, responding to the federal government’s announcement of its intent.

“We have worked to hold the administration to responsible climate action and we will continue to advocate for regulation that confronts the climate crisis,” Attorney General Frey added.

[RELATED: Gov. Janet Mills Reacts to Trump Administration’s Reversal of Obama-Era Declaration Underpinning Greenhouse Gas Regulation]

EPA Administrator Lee Zeldin has highlighted the positive impact that this move can be expected to have on the American economy, criticizing existing regulations as detrimental to the country’s financial well-being.

“They created this endangerment finding and then they are able to put all these regulations on vehicles, on airplanes, on stationary sources, to basically regulate out of existence, in many cases, a lot of segments of our economy,” he said. “And it cost Americans a lot of money.”

President Donald Trump (R) called the move “the single largest deregulatory action in American history, by far” while EPA Administrator Lee Zeldin referred to the endangerment finding as “the Holy Grail of federal regulatory overreach,” according to the Associated Press.

It is expected that this latest lawsuit will likely come before the Supreme Court.

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Libby Palanza

Libby Palanza is a reporter for the Maine Wire, frequently covering legislative, legal, and local stories. She can be reached at [email protected].

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Bill ( Abolish Ranked Choice Voting )
Bill ( Abolish Ranked Choice Voting )
5 months ago

CO2 is plant food, Not pollution,…..
Let’s delete the democrats instead,….

9
bobhickok
bobhickok
5 months ago

Want are Aaron’s chances in the dreaded private sector?

4
Handy N Handsome
Handy N Handsome
5 months ago

My once great state has no shortage of climatards.

11
cheshire cat
cheshire cat
5 months ago

“The first thing we do is, let’s kill all the lawyers.” Dick the Butcher: Act IV, Scene II Henry VI, Part II, William Shakespeare

2
Samuel Prescott Lee PhD
Samuel Prescott Lee PhD
5 months ago

Maine Attorney General Aaron Frey made clear his dissatisfaction with the Trump Administration’s efforts to rescind the declaration, calling the move an attempt to “def[y] science, law, and reality. The science is clear that greenhouse gas emissions cause significant harm to public health and welfare, which is increasingly borne out in Maine by impacts including sea level rise, extreme storms, flooding, and disrupted coastal habitats and fisheries,”
The science is NOT clear. CO2 has no consistent correlation between levels and temperature. The earth today is greener than it has been in thousands of years. When there has been a rise in temperature, the rise in CO2 happens later. How can a cause happen after the event?

6
Jim
Jim
5 months ago

Is this the same science that said we need to mask up, distance from each other and get 50 shots?

4
Dan
Dan
5 months ago

“Greenhous Gas Declaration” is insane and unscientific
Not even a law. It’s a rule declared by Obama Bureaucrats. People who have now been wrong since 1987. Declared by decree, can be reversed by decree.
Carbon Dioxide is an essential life ingredient, not pollution. Plant life needs CO2 to survive, and the more carbon dioxide in the atmosphere, the more plant life appears to provide cooling. (mitigating factors neglected by so-called “expert” researchers)
Every single major warming prediction has been wrong.
& if they’d been correct, we’d have all been dead by 1999.
Who are these people to even tell us 1979 was the correct temperature for planet earth.

4
Louis Bruns
Louis Bruns
5 months ago

Climate HOAX

1
Louis Bruns
Louis Bruns
5 months ago

My electricity has almost tripled since 2020, solar dosen’t work on an industrial level in Maine ! 350 foot bird killers DONT work in Maine, friggin fools ruined thousand of acres of untouched Maine wilderness putting up bird killers ! Angus and his family made MILLIONS on wind farms that will NEVER work they are litteraly hazardous waste !

1
Louis Bruns
Louis Bruns
5 months ago

My generation made them take down billboards this generation is destroying the wilderness and now possibly the ocean with CHINESE MADE WIND MILLS !! FOOOOOOOLS

1
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