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ARTICLE · 22 JULY 2025

EPA Releases Online Public Information Resources For Contrails And Geoengineering

Crain Caton & James
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On July 10, EPA announced the release of "New Online Resources Giving Americans Total Transparency on the Issues of Geoengineering and Contrails." In the news release, EPA said the resources are to "address public questions and concerns about…geoengineering and contrails."

United StatesEnvironment
James E. Smith
James E. Smith

On July 10, EPA announced the release of "New Online Resources Giving Americans Total Transparency on the Issues of Geoengineering and Contrails." In the news release, EPA said the resources are to "address public questions and concerns about...geoengineering and contrails."

Concerns about Contrails
Condensation trails, or "contrails," are the line-shaped exhaust clouds seen behind jet aircraft. Their engine exhaust is composed of water vapor, carbon dioxide, particles, and other emissions commonly found when combusting fuel.

The resources address "myths and misconceptions" regarding contrails. Notably, EPA is addressing concerns that "intentional release of dangerous chemicals or biological agents at high altitudes" are "attempts to geoengineer Earth or modify the weather." Neither EPA nor any other federal agency knows of any "contrail intentionally formed over the United States for the purpose of geoengineering or weather modification."

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