This story was originally published by Inside Climate News and is reproduced here as part of the Climate Desk collaboration.

Sweeping changes underway at the federal agency tasked with protecting the nation’s forests could result in the loss of more than a century of critical historical documents, conservationists warn.

The US Department of Agriculture’s Forest Service announced a major restructuring at the end of March that includes closing all 10 regional offices. Those offices house troves of archival documents—many of which are not digitized—that chronicle the history in the nation’s forests. Thus far, the agency has not made public its plans to keep that information safe.

The Forest Service archives include data and records from the 120 years that the agency has operated, as well as historical documents going back to the 1800s. Included among them are photographs showing changes in forest landscapes, scientific research data, land management records and samples of water and plants.

These records outline the recent history of climate change and provide crucial information for ongoing adaptation, said the Center for Biological Diversity’s Brian Nowicki.

“We have to have our heads on straight in order to address [climate change],” said Nowicki, a senior public lands advocate. “We do that by having a strong historical record.”

On Thursday, the Center for Biological Diversity submitted a public records request to the USDA asking for details on the agency’s plans to relocate archives from the regional offices, and for any records that the agency refuses to submit to the National Archives before the offices are closed and the records are destroyed or inaccessible.

The agency has 20........

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