How the ‘Chemtrails’ Conspiracy Theory Is Sabotaging One Company

Summary

The Journal. – "How the ‘Chemtrails’ Conspiracy Theory Is Sabotaging One Company"

Podcast by The Wall Street Journal & Spotify Studios
Air date: December 17, 2025
Hosts: Jessica Mendoza & Ryan Knutson

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Overview

This episode explores the resurgence of cloud seeding—a technology to induce rainfall—and the growing conspiracy theories, particularly “chemtrails,” that threaten its adoption. The story centers on Rainmaker, an ambitious startup leveraging drones and AI to scale modern cloud seeding, and how the company became embroiled in disinformation and public mistrust after a deadly Texas flood was wrongly linked to its operations. The episode delves into science, skepticism, and the intersection of innovation with the uniquely American tendency toward conspiracy theories.

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Key Discussion Points & Insights

1. What Is Cloud Seeding?

• Origins & Method

  • Developed in 1946 by GE scientists to address plane wing icing ([00:17], Chris Marr).
  • Early experiments showed that adding dry ice to clouds created more precipitation ([00:32]).
  • Today, silver iodide is dispersed by planes (now sometimes drones) to help form rain or snow ([00:48], Jessica Mendoza).

• Scientific Challenges

  • Difficult to measure and verify effectiveness; technology seemed “unnatural” to some ([01:11], Jessica Mendoza & Chris Marr).
  • Social and ethical concerns about interfering with nature ([01:21], Chris Marr).

2. Modern Cloud Seeding: The Utah Experiment

• Drought Crisis

  • Utah faces severe drought, with the Great Salt Lake shrinking and raising health and economic concerns ([04:15], Chris Marr).
  • State officials believe cloud seeding could increase precipitation by around 10%—significant over decades ([05:38], Chris Marr).

• Rainmaker’s Entry

  • Startup Rainmaker, funded by Peter Thiel, introduces drones and AI weather modeling ([06:14], Jessica Mendoza).
  • Drones provide precision, safety (no pilots in storms), and real-time data ([06:52], Chris Marr).
  • “With these new radar technologies with these new drones…we can revolutionize cloud seeding and bring water to the west and to the rest of the Earth's deserts in an unprecedented way.” ([08:25], Augustus Dirico).
  • Rainmaker aims to generate 10 billion gallons of water by April—still a “fraction” of the lake’s needs ([07:18], Jessica Mendoza).

3. Facing Skepticism & Conspiracy Theories

• Public Intuition & Sci-Fi Fears
  • Augustus Dirico acknowledges “frontier” feel: “People have this sort of intuitive notion that’s God’s domain or something.” ([09:29], Augustus Dirico).
  • “We have to make this really esoteric atmospheric science information digestible…so they understand what we’re doing and that it’s not some sort of malevolent conspiracy theory by a super villain kid that wants to control the weather.” ([09:45], Augustus Dirico).

4. The Texas Flood & Conspiracy Backlash

• The Event

  • July: Deadly floods strike Texas; soon after, online theories tie Rainmaker’s recent cloud seeding nearby to the disaster ([12:16], Chris Marr).
  • High-profile figures like Gen. Michael Flynn and Rep. Marjorie Taylor Greene amplify the claims ([13:04]).

• Scientific Refutation

  • Rainmaker only seeded clouds “150 miles from the site,” producing a negligible water increase ([12:44], Chris Marr).
  • “It’s not possible scientifically or with the laws of physics for the company to have produced the quantities of water that came down from this storm system.” ([13:49], Chris Marr).
  • Rainmaker suspended operations upon noticing the major storm approaching.

• Augustus Dirico Responds

  • Expresses empathy for the tragedy and caution in discussing conspiracy theories:
    “I would be remiss to be glib about it and…talk about conspiracy theories casually.” ([14:37], Augustus Dirico).
  • Wasn’t surprised by conspiracy attention, but shocked at the intensity:
    “I had no idea that congresspeople would be posting my face on their Twitter...It was very acute in that moment, for sure.” ([15:06], Augustus Dirico).

5. The Enduring Chemtrails Myth

• What Are ‘Chemtrails’?

  • Some believe airplane vapor trails are toxic chemicals for weather or mind control.
    “There’s no evidence that any of this is true.” ([16:14], Jessica Mendoza).
  • Still, the myth gets reinforced by officials like RFK Jr. ([16:28], Chris Marr).
  • Chris Marr debunks: “Chemtrails don’t exist. They are the condensation trails that come out from jets...” ([16:28], Chris Marr).

• Policy Repercussions

  • States like Louisiana, Tennessee, and Florida ban weather modification; over 30 others consider similar bills ([16:44], Jessica Mendoza).
  • Florida Gov. Ron DeSantis:
    “People got a lot of kooky ideas that they can get in and put things in the atmosphere to block the sun . . . We're not playing that game in Florida.” ([16:53], Chris Marr).

• Augustus Dirico on American Distrust

  • Links susceptibility to conspiracy to individualist history and distrust of institutions:
    “Our unique distrust in institutions as a country means…we are more liable to conspiracy theories and their consequences.” ([17:22], Augustus Dirico).
  • Sees Rainmaker’s path as a chance to “reset the standard of transparency and deserved and earned trust.”

6. The State of Cloud Seeding Technology

• Still Early Days

  • Rainmaker is working out drone durability, weather resistance, and operational scale ([18:41], Chris Marr).
  • “It’s an iterative process…they have drones that sometimes fall out of the sky…a lot of figuring out.” ([18:59], Chris Marr).
  • Possibility of creating a new water business if results can be reliably measured ([19:40], Chris Marr).

• Bigger Picture

  • Tension between technological leaps and persistent unscientific thinking:
    “The two are really colliding right here in this story.” ([19:48], Chris Marr).

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Notable Quotes & Memorable Moments

• On Cloud Seeding's “Frontier” Reputation:

  • “Cloud seeding and weather modification, it’s very frontier. It has to do with modifying the sky and people have this sort of intuitive notion that like that’s God’s domain…”
    — Augustus Dirico ([09:29])

• On Technological Innovation:

  • “With these new radar technologies with these new drones. With all this new software, we can revolutionize cloud seeding and bring water to the west and to the rest of the Earth's deserts in an unprecedented way.”
    — Augustus Dirico ([08:25])

• On Conspiracy Theory Impact:

  • “I had no idea that congresspeople would be posting my face on their Twitter and that former American generals would be tweeting about cloud seeding and indicating that they thought cloud seeding was responsible for floods.”
    — Augustus Dirico ([15:06])

• On American Distrust:

  • “Our unique distrust in institutions as a country means...we are more liable to conspiracy theories and their consequences.”
    — Augustus Dirico ([17:22])

• Scientific Debunking:

  • “Chemtrails don’t exist. They are the condensation trails that come out from jets as they burn fuel and that hits the cold, very cold atmosphere, and basically you’re seeing a trail of ice crystals in the sky.”
    — Chris Marr ([16:28])

• On the Intersection of Science & Society:

  • “It’s a great example of trying to take an old technology…really bring in AI and drones…to address a very real problem…but at the same time running into these very unscientific ways of thinking.”
    — Chris Marr ([19:48])

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Important Segment Timestamps

• 00:05–02:26: Cloud seeding basics and history; introduction of skepticism
• 04:15–06:07: Utah’s water crisis and adoption of cloud seeding; economic and health stakes
• 06:14–08:52: Rainmaker startup story, technology, scale, and vision
• 09:29–10:15: Discussing public apprehension and necessity for transparency
• 11:52–12:44: Texas floods and Rainmaker’s connection; spread of conspiracies
• 13:04–13:49: Political amplification and Rainmaker’s scientific rebuttal
• 14:22–15:32: Augustus reflects on becoming a lightning rod for conspiracy accusations
• 16:44–17:22: Chemtrails myth, legal bans, and the role of American distrust
• 18:41–19:48: Technology limitations and the challenge of moving from idea to large-scale impact
• 19:48–20:23: Final commentary on the collision of science and public suspicion

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Conclusion

The episode paints a vivid picture of how innovative climate intervention efforts are both propelled and hampered by public and political perceptions. Rainmaker’s experience underscores not only the technical hurdles of making rain on demand, but also the formidable challenge of combating conspiracy theories in an environment primed for skepticism. The future of such technology depends not only on science and engineering but on public trust and the ability to “reset the standard of transparency.”

Transcript

[Jessica Mendoza]

Did you know that it's possible to artificially create rain? I didn't, but the technology has actually been around for decades. It's called cloud seeding.

[Chris Marr]

Cloud seeding was invented in 1946 by General Electric scientists in upstate New York. And what they were trying to do was to find a solution to the icing on airplane wings.

[Jessica Mendoza]

That's our colleague Chris Marr.

[Chris Marr]

And they discovered that when they put dry ice into clouds in a simulated experiment, it produced ice crystals like snow. So it really was a way to squeeze more water, more moisture out of clouds than would traditionally be falling naturally.

[Jessica Mendoza]

Typically, the way it works is an airplane flies into a bunch of clouds and releases a type of salt called silver iodide, the water particles attached to the tiny bit of salt and, and form rain or snow.

[Chris Marr]

What I discovered in kind of looking back through the history of the cloud seeding was that in the 70s, that was kind of considered the heyday. It was used much more commonly, but the usage fell off.

[Jessica Mendoza]

That's because it was hard to measure how well cloud seeding was working. The technology still had a ways to go, and it also seemed a little unnatural to some people.

[Chris Marr]

It does have that sort of mysterious element to it that you can affect, you know, natural weather systems, things in nature. Also, people have questions about whether people should interfere with nature, you know, whether we should try to influence it or to what degree.

[Jessica Mendoza]

Today, thanks to new technology, cloud seeding has seen somewhat of a comeback, especially in states where droughts have gotten dramatically worse.

[Chris Marr]

States like Utah, Nevada, California, Western states that are tend to be dry. They've had a lot of droughts in the past few decades.

[Jessica Mendoza]

There's hope that cloud seeding can help solve the massive water crisis out west. Except the misgivings about the technology won't go away. And now cloud seeding is caught up in full blown conspiracy theories.

[Chris Marr]

Cloud seeding has gotten mixed into some of these weather conspiracies and they've sort of accelerated because of social media, because of fears, anxieties over climate change, making these conspiracies even more prevalent.

[Jessica Mendoza]

Welcome to the Journal, our show about money, business and power. I'm Jessica Mendoza. It's Wednesday, December 17th. Coming up on the show, the push to make more rain and the conspiracy theories getting in the way.

[Augustus Dirico]

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[Jessica Mendoza]

This message is brought to you by Apple Card. Apple Card members can earn unlimited daily cash back on everyday purchases wherever they shop. This means you could be earning daily cash on just about anything, like a slice of pizza from your local pizza place or a latte from the corner coffee shop. Apply for Apple Card in the Wallet app to see your credit limit offer in minutes subject to credit approval. Apple Card issued by Goldman Sachs Bank USA, Salt Lake City branch terms and [e-mail]. When Chris started looking at cloud seeding efforts across the country, he zoomed in on Utah, which last month kicked off the largest cloud seeding project in US History. Why is Utah a good testing ground for modern cloud seeding efforts?

[Chris Marr]

Yeah, there's a number of reasons. And you know, one of them is just that the state is desperate for water. It has been going through droughts. The Great Salt Lake is in trouble and everyone kind of recognizes that. From the governor on down, the Salt Lake in 2022 reached its lowest recorded level. It's been kind of shrinking and I got to fly over the lake a bit and kind of skim over the surface and you can see all the flat, you know, dried out areas, which is pretty incredible.

[Jessica Mendoza]

Maybe this is an obvious question, but the drying up of the Great Salt Lake, what is the issue? Is it like, what's the concern primarily?

[Chris Marr]

Yeah. So the Great Salt Lake is important on so many levels. It's important ecologically. It would be really an ecological disaster if the lake were to dry out. It supports a lot of industry, about $2 billion worth of industry annually. Recreation, mineral mining, different things. And even now there is also sort of a health risk too, because as the lake dries out, more dust is being created from that dry lake bed. It's laden with arsenic. There's risks to people's health, asthma, a variety of other concerns.

[Jessica Mendoza]

Some state officials in Utah are hoping that cloud seeding could be an important tool in reviving the Great Salt Lake. Here's the head of the state's Department of Natural Resources on a local Fox station.

[Chris Marr]

We're going to have cloud seeding station up and down the entire, not just the Wasatch, but the entire range of the Rockies through the state of Utah. They believe that cloud seeding can increase precipitation by about 10% on a day to day basis. That may not be that much, but over Decades. It's pretty significant. And they increase their budget from $350,000 a year to $5 million a year, which is a pretty huge increase.

[Jessica Mendoza]

Another thing the state of Utah did to amp up its cloud seeding efforts is team up with a startup called Rainmaker.

[Chris Marr]

So Rainmaker is formed in 2023, so a very new company. Its CEO is 25 years old. There's about 120 employees right now, and they're really trying to develop this technology to, you know, upgrade something that was done for decades and kind of bring it into the 21st century.

[Jessica Mendoza]

Rainmaker's Cloud seeding operation has grown quickly. It got off the ground thanks to a big name in Silicon Valley, Peter Thiel, who was an early backer of Rainmaker's CEO. And the company does things differently than old school cloud seeding. Instead of using planes, it uses drones and AI enhanced weather modeling.

[Chris Marr]

In the past, the silver iodide would come out of a flare that was attached to an airplane. And that did work, but it was not very precise, and you had pilots who had to fly into dangerous weather. So Rainmaker, you know, in using drones, they also give themselves a lot more flexibility in terms of targeting specific areas. And also they have sensors on the drones, so they're getting real time information from the drone itself.

[Jessica Mendoza]

The question is how much rain Rainmaker can actually make. The Great Salt Lake needs an enormous amount of water per year to stop drying up. Rainmaker is trying to prove that they can make about 10 billion gallons of water by April. That's still a fraction of what the lake ultimately needs. But Utah state officials think cloud seeding could help. And it's a whole lot cheaper than other methods like desalination. I got on a call with Rainmaker CEO Augustus Dirico last week. Hi.

[Augustus Dirico]

Hi, Jess. How are you? Good.

[Jessica Mendoza]

How are you?

[Augustus Dirico]

I am blessed. I am blessed.

[Jessica Mendoza]

Augustus has blonde hair cut into a mullet. He showed up to the studio in a big brown jacket and drank his coffee black. I asked Augustus, what about cloud seeding technology has changed enough to make his project work.

[Augustus Dirico]

In 2017 in the United States, some researchers realized if you have the right kind of radar and you fly in a zigzag or a spiral or a specific pattern, you can use that radar to differentiate between liquid and ice. That is the fundamental innovation that enables Rainmaker to exist, that enables cloud seeding to work.

[Jessica Mendoza]

Was that sort of your pitch for the company?

[Augustus Dirico]

The pitch for. It's funny you say that the. Yeah, basically. Long story short, yes, I was like, with these new radar technologies with these new drones. With all this new software, we can revolutionize cloud seeding and bring water to the west and to the rest of the Earth's deserts in an unprecedented way.

[Jessica Mendoza]

Augusta says that he and his team spend a lot of time outdoors getting drones out and refining their rain making process.

[Augustus Dirico]

A lot of life is on mountaintops, in snowy valleys, actually deploying these drones and seeding these clouds. We drive out in the field, we launch these drones, we seed the clouds with silver iodide, and we'll do that for 6, 8, 12, 16 hours max at a time and bring snow down thereafter.

[Jessica Mendoza]

Beyond the challenges with the technology, Augustus has a consistent problem to deal with, trying to put concerns to rest about the science behind his work. That's because you can only modify the weather for so long before the conspiracy theory starts swirling.

[Augustus Dirico]

Cloud seeding and weather modification, it's very frontier. It has to do with modifying the sky and people have this sort of intuitive notion that like that's God's domain or something.

[Jessica Mendoza]

I mean, the words weather modification sound sci fi.

[Augustus Dirico]

Yeah, yeah. And to some that's really exciting. To others, if you're not exposed to technology, if you're not interested in sci fi and you're just trying to go about your life, yeah, I am super empathetic to why people would be concerned about that. We have to make this really esoteric atmospheric science information digestible so that they understand what we're doing and that it's not some sort of malevolent conspiracy theory by a super villain kid that wants to control the weather.

[Jessica Mendoza]

After the break, Rainmaker gets pulled into a major weather conspiracy theory.

[Chris Marr]

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[Chris Marr]

Tonight, catastrophic flooding in central Texas overwhelming a Christian summer camp for girls along the Guadalupe River.

[Augustus Dirico]

A month's worth of rain falling in.

[Chris Marr]

Just a matter of hours.

[Jessica Mendoza]

That camp saying that they have been hitting with catastrophic damage. They say they do not have power, wi fi or water. And again, at least 20 campers are believed to be missing right now. Here's my colleague Chris again.

[Chris Marr]

In the end, you know, more than 130 people were killed. Just an incredibly tragic story. And pretty quickly, people started to tweet about Rainmaker because someone had figured out that Rainmaker had operations in Texas.

[Jessica Mendoza]

Two days before the flood, Rainmaker had seeded clouds 150 miles from the site of the tragic summer camp fatalities. And people online started to wonder if the two events were connected.

[Chris Marr]

They started asking, you know, is it possible this cloud seeding company could have caused this tragedy, all this flooding and these deaths?

[Jessica Mendoza]

Everyone is searching for answers amid this tragedy and still searching for people in Texas. What we're also seeing is people latching onto a consumer conspiracy that cloud seeding is what has caused the deadly floods that we saw play out.

[Chris Marr]

Last Friday, retired General Michael Flynn asked for an accounting of the company's Texas operations. And Marjorie Taylor Greene soon after that. You know, within a day or two, she said she was going to introduce a bill to ban all weather modification across the entire United States. Congresswoman Marjorie Taylor Greene is targeting weather modifications. She actually posted a photograph of Augustus Dirico, the CEO of Rainmaker.

[Jessica Mendoza]

The high profile tweets fanned the flames of a conspiracy theory that cloud seeding can cause natural disasters. Rainmaker and Augustus responded quickly and said that the company's cloud seeding efforts in Texas could not have made the amount of water that caused the flooding.

[Chris Marr]

I mean, it's not possible scientifically or with the laws of physics for the company to have produced the quantities of water that came down from this storm system. The National Weather Service had said that about 20 inches of rain fell in certain areas. And Rainmaker has said that its cloud seeding emissions can only produce a fraction of an inch. So it wasn't really physically possible for the company to have done it. And the company also ceased its operations when its own meteorologists noticed that there was a storm system coming into the area.

[Jessica Mendoza]

I asked Augustus about this idea that Rainmaker could have contributed to the flooding. Did you see that coming that you were gonna get caught up in this as getting blamed for some of this.

[Augustus Dirico]

First of all, I think it's important to acknowledge the natural disaster was a tragedy. And in any talk about the conspiracy theories surrounding it or Rainmaker's alleged involvement and subsequent exoneration from any responsibility for those floods, like, I would be remiss to be glib about it and, like, talk about conspiracy theories casually.

[Jessica Mendoza]

But Augusta says he wasn't completely caught off guard by these conspiracy theories.

[Augustus Dirico]

I sort of thought that it would inevitably come, especially as we scaled, but I had no idea that congresspeople would be posting my face on their Twitter and that former American generals would be tweeting about cloud seeding and indicating that they thought cloud seeding was responsible for floods. That was. It was. It was very acute in that moment, for sure.

[Jessica Mendoza]

Since the floods, Augustus has had to fight off other conspiracy theories around weather modification, including one that's been around for a long time, associated with the white streams of vapor that airplanes leave behind in the sky. Some people think that those vapor streams are toxic chemicals that the government is purposely releasing to poison people. They call them chemtrails. There's been no evidence that any of this is true. But some prominent government officials, like Health and Human Services Secretary Robert F. Kennedy, Jr. Have also amplified the theory. And it's picked up believers online.

[Augustus Dirico]

Look all over this.

[Chris Marr]

Look how much it spreads. It looks like that skinny, and then.

[Jessica Mendoza]

It spreads like that.

[Chris Marr]

And then guess what? It falls on us. They say it's water vapor and it.

[Jessica Mendoza]

Has no harm to us. I call bs. There's no way that this has nothing to do with emitting chemicals on us and weather control.

[Chris Marr]

Chemtrails don't exist. They are the condensation trails that come out from jets as they burn fuel, and that hits the cold, very cold atmosphere, and basically you're seeing a trail of ice crystals in the sky.

[Jessica Mendoza]

Still, three states have passed laws banning weather. Louisiana, Tennessee, and Florida. Here's Florida Governor Ron DeSantis.

[Chris Marr]

People got a lot of kooky ideas that they can get in and put things in the atmosphere to block the sun and save us from climate change. We're not playing that game in Florida.

[Jessica Mendoza]

More than 30 other states have introduced similar legislation. Scientists overwhelmingly say that this is a growing effort to police something that isn't happening. For his part, Augustus has testified at several state legislatures about the reality of cloud seeding.

[Augustus Dirico]

It is a uniquely American dynamic to be concerned about these kind of conspiracy theories and chemtrails. You know, I think in, like, the last five, 10 years, you could call a specific point. I won't. But like the United States was always this very yeoman, independent society, self governing society, make decisions for yourselves type people, like a large Protestant influence. Which means that we do a lot of like our own interpretation of facts, information, and we don't trust our institutions anymore. Right. And so like our unique distrust in institutions as a country means that relative to any prior time in our history, I think and any other country on the planet are liable to conspiracy theories and their consequences. And so, insofar as Rainmaker will become an institution with time and grow larger, like, I would like to help reset the standard of transparency and deserved and earned trust.

[Jessica Mendoza]

Regardless of conspiracy theories. Our colleague Chris says that Rainmaker's cloud seeding technology has a long way to go before it achieves its ultimate goal of someday turning deserts green.

[Chris Marr]

They've been building the drones, figuring out how high they can fly, what kind of wind conditions, how to, you know, orient the propellers so that they can fly into different conditions. I mean, it's a lot of technology development.

[Jessica Mendoza]

I mean, is this technology ready to seed clouds effectively at that scale?

[Chris Marr]

I don't believe it is at that scale, no. But it's an iterative process. They have drones that sometimes fall out of the sky and there's a lot of figuring out how to keep the drone itself from icing over and failing. But I'm just really curious to see, you know, are they going to be successful and you know, is that going to cause others to take notice of this? Is that going to cause Utah to invest more money if they see good results that they can verify? You could, in theory, in the future get paid to produce 100 million gallons of water. You know, if you can verify that and persuasively, that could become a whole new kind of business in the world.

[Jessica Mendoza]

What does this story say about the challenges of using technology to solve these big intractable problems, especially in this moment?

[Chris Marr]

It's a great example of trying to take an old technology, something that's been around but kind of dormant, almost not very exciting, and to really bring in AI and drones and to create something that's kind of brand new in that way, to address a very real problem in the world, but at the same time running into these very unscientific ways of thinking. And the two are really colliding right here in this story.

[Jessica Mendoza]

That's all for today. Wednesday, December 17th. The Journal is a co production of Spotify and the Wall Street Journal. If you like our show, follow us on Spotify or wherever you get your podcasts. We're out every weekday afternoon. Thanks for listening. See you tomorrow.