Other baffling entries on the memo’s banned language list are “greenhouse gas emissions,” “methane emissions,” “sustainable construction,” “solar energy,” and “geothermal,” as well as “nuclear energy,” “diesel,” “affordable housing,” “prefabricated housing,” “runoff,” “microplastics,” “water pollution,” “soil pollution,” “groundwater pollution,” “sediment remediation,” “water collection,” “water treatment,” “rural water,” and “clean water,” among dozens of others.

“When evaluating agreements, those entries that include these terms or similar terms cannot be submitted,” wrote Sharon Strickland, the USDA’s Northeast area financial management, travel and agreements section head, in an internal March 20 email. The review will “ensure that we maintain compliance with the Administration’s EOS.”

It’s unclear how the guidance would do anything other than completely hinder the department’s ability to monitor the health and edibility of crops, or aid America’s rural development—some of its primary functions. What is clear, however, is that purging such basic speech will stifle scientific research and discourse.