The Trump administration has halted the participation of U.S. scientists in key U.N. climate change assessments, two sources familiar with the situation told Reuters, part of its broader withdrawal from climate change mitigation efforts and multilateral cooperation.

The Trump administration told US government scientists working on a vital global climate report to stop their work – the president’s latest move to withdraw the US from global climate action and research.

The Trump administration’s actions in recent days have cast unprecedented uncertainty upon the climate panel’s work.

The Trump administration told US government scientists working on a global climate report to stop their work, one of the scientists involved told CNN.