The City of Chicago has resurrected climate change data that was deleted from the Environmental Protection Agency website under President Donald Trump.

A climate change section recently added to the city’s official website will permanently host decades of EPA research purged by the federal agency in April under Trump’s administration, which is packed with climate-change deniers and friends of the fossil fuel industry.

Climate change is real. Since the facts were deleted from the @EPA’s website, check ours. https://t.co/YlzlF4KReO pic.twitter.com/nsjNE3BMG9 — ChicagosMayor (@ChicagosMayor) May 7, 2017

A header on the new Chicago-hosted webpage reads:

“While this information may not be readily available on the agency’s webpage right now, here in Chicago we know climate change is real and we will continue to take action to fight it.”

The city website includes EPA primers on climate-change science, data showing how greenhouse gasses and emissions influence weather, and a list of federal efforts to mitigate the effects of climate change.

Chicago Mayor Rahm Emanuel said the Trump administration was “burying [its] head in the sand” on climate change, and called for other cities and academic institutions to join his city to help preserve access to the scientific data.

The Trump administration can attempt to erase decades of work on climate change, but burying your head in the sand doesn’t erase the problem — ChicagosMayor (@ChicagosMayor) May 7, 2017

“Cities are becoming central in the climate fight. In the absence of federal leadership, this is a key moment for local action,” Henry Henderson, Midwest director for the Natural Resources Defense Council, said in a statement. “Chicago has long been a clean energy leader and is now stepping up to help defend the nation against the seeming war on climate science underway in D.C.”

The Trump administration removed a White House webpage devoted to climate change moments after Trump was sworn into office in January.