California secures emissions waiver as Trump plans reversal

The Biden administration approved California's authority to enforce stricter vehicle emissions standards, just before Donald Trump takes office vowing to reverse the decision.

Alex Nieves and Debra Kahn report for POLITICO.


In short:

  • The EPA granted California permission to enforce emissions rules stricter than federal standards for cars and heavy-duty trucks.
  • Trump’s incoming administration plans to revoke these waivers, siding with the auto industry’s push for a single national standard.
  • The waiver approval gives California legal leverage, but Trump could still initiate a lengthy process to undo it.

Key quote:

“Naysayers like President-elect Trump would prefer to side with the oil industry over consumers and American automakers, but California will continue fostering new innovations in the market.”

— Gavin Newsom, governor of California

Why this matters:

California’s ability to set higher emissions standards drives national policy, as other states often follow its lead. Reversing this authority could stall efforts to curb air pollution and reduce climate change impacts, affecting public health and environmental goals.

Read more: Trump’s return may derail California clean air rules

A view of the Denver skyline at dusk with the moon rising behind the mountains

Denver has a plan to heat and cool buildings without fossil fuels. It involves … sewage?

Heating and cooling skyscrapers requires a lot of fossil fuels. Now, Denver, Colorado is trying a surprising solution.

A male influencer standing in front of his phone on a tripod shooting a video

'Be a PleniDude’: How an Italian oil giant conquered TikTok

Aspiring influencers share pro-industry climate messaging after attending six-week content creation bootcamp.
An illustration of a gas pump with golden coins floating out of it

Could the Iran war shrink global oil demand for good?

As the oil crisis deepens across the globe, households and industries are using less fossil fuel — maybe permanently.
An overhead view of various recycling boxes

Your carbon footprint is only half the story

A pioneering study introduces a parallel metric, the plastic particle footprint — and uses it to rerank kettles, bottles, crates, and T-shirts. The winners aren't who you'd expect.
An aerial view of a beach with green water and waves

The global impact of losing US sea level science

Cuts to climate science risk halting or reversing decades of progress in global change research, just as rising seas demand better data, more informed decision-making, and faster action.

A small black child eating with a spoon

Climate change is weakening staple foods in Black diets

Air pollution has made staple crops in the Black diet less nutritious, but urban farmers are cooking up solutions.
Red sunset over the ocean backlighting a tied-off skiff

See the undersea blob of warm water that may spark a super El Niño

A 9,000-mile freight train of warm water could contribute to one of the strongest El Niño events on record later this year, with cascading effects expected on global climate patterns into 2027.
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.