People rely on data from federal agencies every day—often without realizing it.

Rural residents use groundwater level data from the U.S. geological survey’s National Water Information System to decide where to dig wells. High school coaches turn to weather apps supported by data from the National Weather Service to decide when to move practice inside to avoid life-threatening heat. Emergency managers use data from the Census Bureau’s American Community Survey to ensure that residents without vehicles have seats on evacuation buses during local emergencies.

On Jan. 31, 2025, websites and datasets from across the federal government began to disappear. As that happened, archivists and researchers from around the world sprang into action, grabbing what they could before it was gone.

Trust in the federal statistical system took another hit when Bureau of Labor Statistics Commissioner Erika McEntarfer was fired on the heels of a dismal Aug. 1, 2025, employment report.

And reduced data collection at the bureau was already causing concern before her dismissal. The bureau has ceased collection of critical inputs to the Consumer Price Index, likely reducing that inflation indicator’s accuracy, especially at the level of specific locations and products.

As researchers of economics and epidemiology at the University of Michigan, we have spent years working with data, often from the federal government. When data and information began to disappear, we were spurred into action to preserve these important public goods.

The Inter-university Consortium for Political and Social Research, where we work—commonly known as ICPSR—has been making data from governments and researchers available for more than 60 years. We are stewards of this data, preserving it and ensuring that it is accessible in a safe and responsible manner.

Unfortunately, government data is now at risk of becoming less available or disappearing. But there are steps that researchers—and the public—can take to reduce that risk.

Some 8,000 pages were removed from federal websites within a few days of Jan. 31, 2025. Though many were soon restored following substantial outcry and some court orders, it’s still unclear how the restored webpages........

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