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The Trump administration has withdrawn U.S. scientists from a key United Nations climate change assessment, further distancing the country from international climate efforts.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 person holding a pile of organic soil in his hands

Deep soils could hold keys to climate resilience

A new research center is investigating how ancient soils could help farmers adapt to climate change and a warmer future.
A person holding a level on a solar panel

Hosting solar can be a lifeline for farmers, but overcoming local opposition is tough

Local opposition to solar has long been an obstacle for green energy developers in the United States, but some communities are working to reverse local restrictions.
Renewable energy in the Cuban countryside with small white domicile and an oxcart
Credit: elifranssens/BigStock Photo ID: 50678279

Cuba could beat US energy blockade with $8B investment in renewables, says think tank

Report by Common Wealth argues rest of the world should pay for country’s transition as reparative climate finance.

Flag of Texas adjacent to solar panels
Credit: Millenius/BigStock Photo ID: 346789597

Texas sharpens attacks on solar power

From the state Capitol to utility commission dockets, Texas officials are moving to derail solar plans as they brace for a surge in electricity demand.
A man wearing a red jacket and carrying a red bag walking through a snowy landscape

This simple metal tube helps scientists predict drought before it happens

We’re in a perilous moment for water, but the Church Sampler is one of the many devices scientists can use to help us make better decisions.

Cameras mounted on a tall pole with a house in the background

Tracking traffic pollution transforms city climate policy

Using traffic cameras and phone data, researchers created a real-time emissions map — giving cities a powerful new tool to cut pollution faster and smarter.

Closeup portrait old gentleman in white shirt having difficulties with extreme heat high temperature wiping sweat from face very tired isolated green trees paved road background
Credit: A and N photography/BigStock Photo ID: 72336619

‘Heat batteries’ leave some city blocks scorched

It’s about to get hotter in our nation’s cities. Just how hot it gets depends not only on the weather, but also on infrastructure, working conditions, and ZIP codes.

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.