"Fearing the Trump administration might meddle with U.S. climate data, scientists in Germany are preparing to transfer vast troves of that data to repositories in Hamburg."
"In a modern five-story building in the center of Hamburg, Germany, technicians are preparing to install several new “racks” — gray metal casings that hold computing hardware — alongside the scores that already line the narrow, dimly lit corridors of the German Climate Computing Center, or DKRZ, one of the world’s largest repositories for climate simulation data. The new equipment will add about 5 petabytes of storage capacity to the 254 petabytes of data already stored here. One petabyte of data is equivalent to the storage space needed for roughly 200 million high-resolution images.
Under normal circumstances, the DKRZ’s mission is to provide computing power and storage to the German climate science community. But these new racks will serve a different and highly sensitive purpose: They will store backup versions of climate simulations from the other side of the Atlantic. The operation aims to ensure that essential work performed by U.S. scientists for the next major U.N. climate assessment, due in 2029, cannot be meddled with or compromised by the administration of President Trump, which has slashed funding for climate research, buried scientific reports, removed references to human-caused warming from dozens of government websites, and sought to prevent satellites from collecting key climate data.
Leaders of German science organizations publicly cite these actions as their primary motivation for creating backups. The German Research Foundation, the country’s main science funding body, believes that the Trump administration could block European access to data and research findings stored in the U.S. “The deletion of data has also become a possibility,” said the foundation’s program manager, Kathrin Winkler, “and there is a risk that [data] could be manipulated to skew findings in a desired direction.”"
Christian Schwägerl reports for Yale Environment 360 September 17, 2026.
