Trump administration halts U.S. role in global climate assessment

The Trump administration has withdrawn U.S. scientists from a key United Nations climate change assessment, further distancing the country from international climate efforts.

Valerie Volcovici reports for Reuters.


In short:

  • The U.S. has stopped participation in an Intergovernmental Panel on Climate Change (IPCC) working group, affecting federal scientists from the National Oceanic and Atmospheric Administration and the U.S. Global Change Research Program.
  • This decision means the U.S. will not be represented at an upcoming IPCC plenary meeting in China, where major decisions about the next global climate report will be made.
  • The move aligns with Trump’s broader climate policy, including withdrawing from the Paris Agreement and cutting international climate funding.

Key quote:

"The power of the IPCC is that governments, businesses, and global institutions can operate with shared conclusions. The U.S. being completely removed from that process is concerning."

— Delta Merner, Union of Concerned Scientists

Why this matters:

If the U.S. were to step back from its involvement in the IPCC — whether through reduced funding, diminished scientific contributions, or political disengagement — the consequences could ripple across the international climate policy landscape. Cooperation on climate action might falter, and momentum toward emissions reductions could slow. The absence of U.S. support could be particularly damaging for scientists in developing nations, who often depend on grants and resources from high-income countries to conduct research and implement adaptation strategies. At a time when climate impacts are accelerating — ranging from devastating wildfires to intensifying hurricanes — any weakening of global collaboration could make it even more difficult to address the crisis.

From 2021: The new IPCC report is dire. Does anyone care?

A tornado coming through a field with blue mountains in the background

Climate change and tornadoes: what the science says

Climate change and tornadoes have a complicated relationship, and these 10 points explain what researchers know about tornado trends, shifting risk and why the record is hard to read.

The silhouette of a person on a stand-up paddleboard next to a bunch of mangroves

A report says nature-based solutions could be answer to climate change issues

A recent report recommends nature-based solutions as part of New Mexico's response to climate change issues.
A small leopard in the middle of the jungle

The Tropical Forest Forever Facility  rainforest fund needs billions before it launches

The TFFF rainforest fund aims to make forest conservation more profitable than deforestation. But a lack of money may prevent it from getting off the ground.
Heavy flooding from monsoon rain and tide from river in Dohar Bangladesh
Credit: sohelparvezhaque/BigStock Photo ID: 141461279

El Niño will increase risk of death in childbirth for millions, say midwives

Effects of extreme weather expected in countries that already have high maternal and newborn death rates.

Data center giving the appearance of newly constructed and empty of personnel

Climate funders convened a data center forum. They triggered a reckoning

One of the country’s biggest climate funders tried to bring tech giants, green groups, energy associations and labor unions together on data centers. Now it’s become the target.

Illustration of sun beating down on an overheating Earth
Credit: revers/BigStock Photo ID: 398245823

Global warming remains unchecked, experts warn at UN’s COP31 climate summit

Current climate and energy policies will have devastating consequences for ecosystems and communities worldwide, new reports show.
Data Center with multiple semi-trucks backed up to multiple loading docks

Data center outrage swept Pennsylvania Democrats into office. What comes next?

Democrats who flipped seats in the state legislature say they’ll prioritize regulating data centers in 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.