View of a smokestack with pollution billowing into the sky.

Climate contrarians play role in EPA move to revoke finding that climate change endangers human health

The U.S. Environmental Protection Agency proposed repealing a foundational 2009 finding that links human-caused climate change to public health risks, basing its decision in part on a report authored by researchers who have sought to inject doubt into the scientific consensus.

Ella Nilsen and Andrew Freedman report for CNN.


In short:

  • The 2009 endangerment finding underpinned U.S. regulations on greenhouse gas emissions from cars, power plants, and oil and gas operations.
  • The proposed repeal draws on a report authored by five scientists known for rejecting mainstream climate research and is framed as the administration’s largest deregulatory move to date.
  • Climate scientists say evidence of harm from rising temperatures has only strengthened since 2009, with global warming accelerating extreme weather events and threatening food and water systems.

Key quote:

““It reads like a blog post — a somewhat scattershot collection of oft-debunked skeptic claims, studies taken out of context, or cherry-picked examples that are not representative of broader climate science research findings. The fact that this has been released at the same time that the government has hidden the actual congressionally mandated national climate assessments that accurately reflect the science only further shows how much of a farce this is.”

— climate scientist Zeke Hausfather

Why this matters:

Scrapping the endangerment finding would strip away the federal government’s authority to regulate greenhouse gases, the primary driver of global warming. The United States remains the second-largest emitter in the world, and its emissions continue to fuel record-breaking heat, severe storms and rising seas. Public health research shows that warming intensifies respiratory illness, worsens air quality, and increases deaths from heat waves and floods. Without federal limits, state-level protections may splinter, leaving vulnerable communities exposed to mounting climate hazards. The rollback also signals a broader shift away from science-based policymaking, raising concerns about how the country will respond to escalating climate risks in coming decades.

Learn more: New EPA proposal aims to strike down landmark climate "endangerment finding"

A row of solar panels with the city of Shanghai in the background

China to see solar capacity outstrip coal capacity this year

The China Electricity Council says that, by the end of 2026, wind and solar will account for nearly half of China’s power capacity.

A tin hut with a small solar panel on the roof

Solar energy gains ground across Africa, but challenges persist

Solar power is expanding rapidly across Africa, with some countries now generating a significant share of electricity from the sun, but energy poverty, battery risks and rising costs threaten future growth.
3D rendered illustration of solar system and battery storage

Battery demand 'straps on a rocket' in Australia as rooftop solar passes its peak

Even as Australia appears to have passed the peak of solar uptake, demand for batteries is seemingly headed into orbit.
Trump tried to gut science research funding. Courts and Congress have rebuffed him.

Trump tried to gut science research funding. Courts and Congress have rebuffed him.

A year ago, federal support for scientific research appeared to be crumbling. But thanks to Congress and several lawsuits, scientists’ worst fears haven’t come to pass.
Tall slag heaps in the distance with green fields and trees in the foreground

A coal town reborn

Once synonymous with mining, this northern French town has become a model for how to sustainably transition away from fossil fuels.
Yellow warning sign of bad weather ahead against stormy sky
Credit: Sergey Nivens/ BigStock Photo ID: 21067712

Flawed economic models mean climate crisis could crash global economy, experts warn

States and financial bodies using modeling that ignores shocks from extreme weather and climate tipping points.

A picnic table at a Texas-motif rest stop with an oil rig in the background.
Credit: Brandon Seidel/ BigStock Photo ID: 18985433

Federal judge blocks Texas law targeting critics of fossil fuels

The court ruled that it was unconstitutional to bar state agencies from investing with firms that the state had accused of boycotting the oil industry.
From our Newsroom
Multiple Houston-area oil and gas facilities that have violated pollution laws are seeking permit renewals

Multiple Houston-area oil and gas facilities that have violated pollution laws are seeking permit renewals

One facility has emitted cancer-causing chemicals into waterways at levels up to 520% higher than legal limits.

Regulators are underestimating health impacts from air pollution: Study

Regulators are underestimating health impacts from air pollution: Study

"The reality is, we are not exposed to one chemical at a time.”

Pennsylvania governor Josh Shapiro speaks with the state flag and American flag behind him.

Two years into his term, has Gov. Shapiro kept his promises to regulate Pennsylvania’s fracking industry?

A new report assesses the administration’s progress and makes new recommendations

silhouette of people holding hands by a lake at sunset

An open letter from EPA staff to the American public

“We cannot stand by and allow this to happen. We need to hold this administration accountable.”

wildfire retardants being sprayed by plane

New evidence links heavy metal pollution with wildfire retardants

“The chemical black box” that blankets wildfire-impacted areas is increasingly under scrutiny.

Stay informed: sign up for The Daily Climate newsletter
Top news on climate impacts, solutions, politics, drivers. Delivered to your inbox week days.