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Health & Science

The EPA’s Debunking ‘Chemtrail’ Conspiracies. RFK Jr. Apparently Thought It Would Validate Them.

The HHS secretary seemed to think that the EPA was digging into his long-held conspiracy theory about airplanes. That didn’t happen.

Zeldin RFK jr. Trump cabinet

Health and Human Services Secretary Robert F. Kennedy, Jr. commended EPA Administrator Lee Zeldin’s initial announcement that the administration would release everything it knows about contrails. Evan Vucci/AP

By Anna Kramer

July 10, 2025 02:35 p.m.

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The Environmental Protection Agency released a new website Thursday that debunks conspiracy theories about airplane contrails — conspiracies that are popular with a contingent of President Donald Trump’s most ardent supporters, and at least one member of his cabinet.

Health and Human Services Secretary Robert F. Kennedy Jr., a longtime believer in the conspiracy that airplanes are spewing chemicals (instead of condensation) into the sky, seemed to think that the agency was planning on validating it.

“Im so proud of my friend Lee Zeldin and President Donald Trump for their commitment to finally shatter the Deep State Omerta regarding the diabolical mass poisoning of our people, our communities,our waterways and farms, and our purple mountains, majesty,” Kennedy wrote on X in response to EPA Administrator Lee Zeldin’s announcement that the agency would be releasing “everything we know about contrails and geoengineering.”

The EPA’s new website actually says the opposite of what Kennedy suggests. It defines “chemtrails” as “a term some people use to inaccurately claim that contrails resulting from routine air traffic are actually an intentional release of dangerous chemicals or biological agents at high altitudes for a variety of nefarious purposes.”

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It’s not clear what inspired the EPA to release this website today, though the administration has spent the week dealing with conspiracy theories on multiple fronts. After devastating floods in Kerr County, Texas, killed more than 100 people over the July Fourth weekend, Rep. Marjorie Taylor Greene pledged to introduce legislation to ban “weather modification” and geoengineering, alluding to the link frequently made between conspiracy theories about contrails and weather control.

“I want clean air, clean skies, clean rain water, clean ground water, and sun shine just like God created it!! No person, company, entity, or government should ever be allowed to modify our weather by any means possible!!” she wrote on X.

The EPA website makes an effort to debunk Greene’s theories as well and explains the role the government takes in regulating geoengineering.

“EPA is aware that some members of the public are concerned about unusual contrails they see in the sky or reports about geoengineering and dangerous chemicals being sprayed from jet aircraft at high altitudes,” the new website reads.

When asked about the EPA publicly addressing concerns about contrails, Oklahoma Sen. Markwayne Mullin seemed frustrated to be talking about conspiracy theories at all.

“Everybody has their own opinion on how they wanna address it,” Mullin said. “I just don’t, because I deal in facts, and if a conspiracy turns into facts, then that’s fine, I’ll deal with it at that time. But until then, I’m not chasing it. We’ve got other things we’ve got to deal with.”

His counterpart, Oklahoma Sen. James Lankford, approved of the EPA’s efforts and said it was important to try to address the false beliefs.

“We need to provide as much transparency as we possibly can, to be able to get information out there so people can get real facts and information,” he told NOTUS. “Because when there’s a void of that, now you’re trying to prove a negative, when there’s nothing. No, government’s not controlling the weather. How do you prove that you’re not doing that when you’re not doing that?”

EPA and HHS did not immediately respond to requests for comment.

—
This story was produced as part of a partnership between NOTUS and Oklahoma Watch.

Author

Anna Kramer, NOTUS Reporter Anna Kramer is a reporter at The Washington Sun.

Contributor

STAFF_Emily Kennard_MUG-500px.png Emily Kennard is a reporter at The Washington Sun and an Allbritton Journalism Institute fellow.

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