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The Trump administration announced plans to close the National Center for Atmospheric Research (NCAR), a leading climate research center, via a tweet on December 16, 2025. The National Science Foundation subsequently stated that NCAR's supercomputer at the University of Wyoming would be transferred to a new operator.

This change jeopardizes the research efforts of over 800 scientists and threatens data models from 1,500 researchers globally. The closure is expected to have significant repercussions for international climate research and the data supporting UN IPCC reports, which guide climate policy worldwide.