Why the EPA’s Move to Overturn Greenhouse Gas Pollution Findings Could Impact Public Health

America is in a heated debate over climate change, with science firmly showing that greenhouse gases are warming our planet and harming our health. This clash is intensifying as federal policy shifts. In July 2025, the Environmental Protection Agency (EPA) proposed to end the 2009 endangerment finding, which classified greenhouse gas pollution as a threat to public health and welfare. This change, if finalized, would weaken federal limits on emissions from new vehicles and other sources.

Ralph Keeling from the Scripps Institution of Oceanography has dedicated years to studying atmospheric carbon dioxide. He emphasizes how vital it is to pair policy discussions with actual data on air quality. The endangerment finding is crucial; it activates the Clean Air Act, allowing the EPA to set safety standards based on public health risks. Without it, regulations on emissions from cars and trucks could vanish.

EPA Administrator Lee Zeldin frames this proposed change as an economic boost, suggesting it could relieve businesses and families from what he terms “hidden taxes” on emissions. But is that the full story?

The Clean Air Act is designed to protect both people and the environment from air pollution. It gives the EPA authority to enforce limits on pollutants like carbon monoxide, sulfur dioxide, and lead. Interestingly, the Act is adaptive; it evolves as scientific understanding deepens. Over the decades, this law has pushed automakers to innovate cleaner technologies, leading to improved air quality—despite a rising population and more vehicles on the roads.

Recent data further highlights the urgency of the situation. In September 2025, a consensus report from the National Academies Press reaffirmed that the earlier EPA finding holds strong against new evidence. The National Oceanic and Atmospheric Administration (NOAA) reported that atmospheric CO2 levels climbed to 425.48 ppm in August 2025, up from 422.99 ppm the previous year. This consistent rise illustrates humanity’s impact on climate change.

Health consequences related to climate change are also becoming clearer. A 2024 study in *The Lancet* found that climate change is already worsening health risks and placing immense strain on healthcare systems. The authors noted unprecedented threats to public well-being.

Legally, the endangerment finding links science with necessary regulations. If this finding is revoked, it wouldn’t just pause one rule. It could erase the foundation for various greenhouse gas standards, leaving states and courts scrambling to fill the gaps.

The current policy changes are affecting ongoing projects too. Recently, a nearly complete offshore wind project, worth $6 billion and designed to power around 350,000 homes, was halted. This pause not only disrupts the job market but also affects local supply chains and electricity planning, leaving communities in a difficult position.

On another note, an inactive federal climate research program means vital data is becoming less accessible. The Congressional Research Service highlighted this issue, pointing out that cities rely on these assessments for preparing for climate-related disasters. Loss of data slows down crucial planning efforts.

It’s essential to remember that any proposed change from the EPA isn’t final. There will be opportunities for public comments and debates which can shape the outcome. Stakeholders from states, public health organizations, and industries will have their say, adding valuable perspectives.

As we navigate through these changes, two truths come to light: America can—and must—debate energy policies while recognizing the scientific consensus on the dangers of greenhouse gases. Decisions regarding these issues affect everyone, particularly those who are most vulnerable. Heat waves, poor air quality, and severe weather don’t discriminate based on political affiliations.

Looking ahead, keep an eye on the EPA’s final decision and the evidence they provide. Watch how Congress might act to either protect or limit the EPA’s power. Also, stay informed about the future of federal climate data, as communities will need this information to adapt to ongoing environmental challenges.

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