Scientists at various government agencies are using a network of Twitter accounts to push back against what they see as the Trump administration’s attempts to squelch federal science research.

Scientists at the Environmental Protection Agency, NASA, the National Park Service and elsewhere set up the rogue Twitter accounts after internal orders at agencies involved in environmental research have curbed dissemination of information, Reuters reported.

“You can take our official twitter, but you’ll never take our free time!” an anonymous Park Service employee posted on @AltNatParkService.

We must not lose sight of the facts. #ungagEPA #ScienceNotSilence https://t.co/Vzpguvpi1z

— U.S. EPA – Ungagged (@ungaggedEPA) January 25, 2017

If posting facts and news to Twitter from a rogue account is what we have to do for the next four years, count us in. #resist

— Rogue NASA (@RogueNASA) January 25, 2017

After the Badlands National Park’s Twitter account posted and then deleted tweets about climate change, a “rogue” account was set up called @BadHombreNPS, a reference to Trump’s statement in a presidential debate about the “bad hombres” crossing the U.S.-Mexico border.

The account posted information about an upcoming march of scientists in Washington, D.C., to push back on attempts to censor research and also instructed readers to help archive science pages.

A #ScienceMarch is being organized by @ScienceMarchDC. learn more about how to get involved here: https://t.co/qpTn1xVpz8

— BadHombreLands NPS (@BadHombreNPS) January 25, 2017

The @internetarchive is a valuable tool in times of science censorship. https://t.co/61VB4TrwrT

— BadHombreLands NPS (@BadHombreNPS) January 25, 2017