The White House is ending funding for the body that produces the federal government’s pre-eminent climate report, which summarizes the impacts of rising global temperatures on the United States.

Every four years, the US Global Change Research Program (USGCRP) is required by Congress to release a new national climate assessment to ensure leaders understand the drivers of – and threats posed by – global warming. It is the most comprehensive, far-reaching and up-to-date analysis of the climate crisis, playing a key role in local and national decision making about agriculture, energy production, and land and water use.

The next assessment is due by 2027. But now, Nasa has ended its contract with the consulting firm ICF International, which convened the USGCRP and coordinated the federal agencies that contribute to the quadrennial report.

“There’s really no coming back from this, and it means we are all less informed about climate impacts, and won’t have the most up-to-date information on risks and threats,” said one federal staffer who was engaged in USGCRP activities, and who requested anonymity to avoid retribution. “USGCRP helped me to leverage resources from other agencies for use in my own work. But without these networks, I’m left without a support system and the latest science on climate change.”