Overview

• On July 10, 2025, EPA Administrator Lee Zeldin unveiled an online facts page aimed at debunking chemtrail conspiracy theories and answering questions about contrails and geoengineering.
• The resource explains that contrails are water-vapor exhaust from jet engines and states the federal government has no evidence of intentional chemical dispersals for weather manipulation.
• It defines “chemtrails” as a mischaracterization of routine contrails and contrasts them with authorized low-altitude chemical uses in firefighting and agriculture.
• Researchers at Harvard University and Columbia University reviewed the material and confirmed its scientific accuracy and clarity.
• Political reactions include Rep. Marjorie Taylor Greene’s proposal to ban weather-modifying dispersals, praise from Robert F. Kennedy Jr. for breaking government silence, and criticism from Rep. Don Beyer over the use of taxpayer funds on the initiative.