Trump Revokes Obama-Era Greenhouse Gas Finding – Climate Action Setback

President Donald Trump on Thursday, February 12, 2026, revoked what has been called the “endangerment finding,” a text approved by the administration of Barack Obama in 2009. The finding stated that six greenhouse gases emitted by combustion engines are harmful to health and served as the basis for fighting emissions. This decision represents a significant shift in policy and has drawn opposition from scientists and environmental advocates.

A Reversal of Course

The change, which is very likely to be challenged in the courts, is considered a setback for climate action in the United States, historically the largest emitter of pollutants. Trump defended the measure as “the greatest deregulation action in the history of the United States” and asserted it would substantially lower costs for vehicle manufacturers and consumers.

“This action will save trillions of dollars for consumers and reduce the average cost of a new vehicle by almost $3,000. During my campaign, I promised to eliminate 10 old regulations for every new regulation, and we have exceeded that,” Trump stated at an event held at the White House, alongside Lee Zeldin, the administrator of the Environmental Protection Agency (EPA).

Did You Know? The “endangerment finding” established that six greenhouse gases, including carbon dioxide and nitrous oxide, emitted by combustion engines pose a risk to health.

The Scientific Debate

The Obama administration’s finding determined that six greenhouse gases present in the Earth’s atmosphere and emitted by combustion engines are a risk to public health. Trump claimed, “That determination had no factual basis, none, or legal basis.”

Trump and Zeldin cited the example of American cars automatically shutting off their engines when stopped at a red light, a result of current regulations. The president described these measures, designed to reduce emissions and conserve energy, as “hated” by consumers.

The “endangerment finding” enabled a wide range of environmental restrictions, based on the understanding that climate change, caused by greenhouse gas emissions, is a fundamental threat. However, more than 1,000 experts stated in a public letter that, contrary to Trump’s assertion, “the scientific evidence regarding man-made climate change and its consequences was unequivocal in 2009 and has since become even more alarming and convincing.”

Expert Insight: This decision signals a clear prioritization of short-term economic considerations—specifically, reduced costs for manufacturers and consumers—over long-term environmental concerns and established scientific consensus. The potential for legal challenges suggests a protracted battle over the future of environmental regulation in the United States.

What Could Happen Next

The revocation of the “endangerment finding” could lead to a weakening of existing emissions standards for vehicles. Legal challenges from environmental groups and state governments could delay or even overturn the decision. Analysts expect the EPA could face increased scrutiny regarding its authority to regulate greenhouse gas emissions. A possible next step is for the EPA to begin a rulemaking process to formally remove the regulations based on the now-revoked finding.

Frequently Asked Questions

What did the “endangerment finding” establish?

The “endangerment finding” established that six greenhouse gases emitted by combustion engines are a risk to public health.

What was President Trump’s justification for revoking the finding?

President Trump stated that the finding had “no factual basis, none, or legal basis” and that the action would save consumers trillions of dollars and reduce the cost of new vehicles.

What is the likely response to this decision?

The change is very likely to be challenged in the courts and has drawn opposition from scientists and environmental advocates.

How might this decision impact the future of environmental regulations in the United States?