Websites hosting U.S. national climate assessments and the U.S. Global Change Research Program were taken offline with no redirects or links available.
The White House said the reports will be moved to NASA, but searches on NASA and NOAA sites failed to locate them and agencies provided no details.
Experts warn that removing access to these taxpayer-funded, peer-reviewed assessments hinders decision makers and raises risks from climate-related impacts.
The national assessments are vital for local climate planning, informing infrastructure decisions such as road elevations, seawalls, and hospital generator placements.
The Trump administration ended the contract for coordinating the next assessment and cut NOAA and NASA public climate communications, drawing criticism as an attack on science infrastructure.
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