You may have noticed those white streaks in the sky left by airplanes. These streaks are called contrails, which is short for condensation trails. They form when water vapor from the aircraft's exhaust condenses and freezes in the air. According to the University Corporation for Atmospheric Research, this is how contrails are created.
Science says that contrails are simply condensation trails left behind by airplanes. However, there is a growing belief among some people that these trails are actually chemtrails, a conspiracy theory claiming that the government is spraying chemicals in the sky instead of water vapor.
While this theory may seem unlikely to some, it has gained popularity in both the US and globally, even in the face of evidence disproving it.
The chemtrails conspiracy theory has been circulating since 1996. It is based on an Air Force research paper titled "Weather as a Force Multiplier: Owning the weather in 2025." This paper discusses a potential future weather modification system using aerospace forces to achieve military objectives. However, the Environmental Protection Agency clarifies that this paper does not represent current military policy, practice, or capability.
The chemtrails conspiracy theory suggests that contrails are not formed by water vapor, but are actually evidence of the government or wealthy individuals releasing toxic chemicals into the air, resulting in the formation of white lines.
There are different beliefs about the intentions behind these alleged toxic chemicals. Some think they are meant to harm people, others believe it is for controlling minds, and some speculate that it is a method for manipulating the weather.
There isn't one official version of the theory, according to Sijia Xiao, a PhD candidate at the University of California, Berkeley. In her 2021 study, she interviewed 20 believers and former believers of the chemtrails conspiracy theory. Instead of a single version, individuals tend to select parts of the theory that they connect with and may add their own interpretations or only accept certain aspects.
So, how did the chemtrails conspiracy theory gain traction?
The government spraying chemicals on humanity may not be entirely unfounded.
During the Cold War, researchers found that the British government carried out over 750 mock chemical warfare attacks on the public. This exposed hundreds of thousands of individuals to zinc cadmium sulfide, a chemical chosen for its small size similar to germs. It also glows under ultraviolet light, making it easy to track. Although considered non-toxic at the time, repeated exposure could lead to cancer. Similarly, the US also used this chemical in the 1950s and 1960s to test the spread of biological weapons.
Decades ago, tests were conducted on contrails, leading to the theory's growth. In 2016, the EPA released a 14-page document discussing contrails, detailing the chemicals used by the Air Force, and addressing conspiracy theories.
In 2021, a Facebook post gained widespread attention alleging that President Joe Biden used chemtrails to control the weather, resulting in Texas experiencing a week-long deep freeze in February. The post received significant engagement from hundreds of people.
On X, many individuals follow accounts that focus on documenting and sharing evidence of chemtrails. A study conducted in 2017 with 1,000 participants from across the country revealed that approximately 10% of Americans fully believed in this conspiracy, with over 30% finding it somewhat plausible.
According to Xiao, skepticism towards authority figures is a common factor in the belief of conspiracies. Additionally, the influence of social media has contributed to amplifying this issue.
Social media’s algorithmic structure tends to show people information that aligns with their current beliefs. According to Coye Cheshire, a professor at UC Berkeley who studies social psychology, ex-believers mentioned that the abundance of conspiracy-related content on their social media feeds played a role in maintaining their beliefs. Cheshire, along with Xiao, conducted a study on this topic. They found that even if scientific evidence disproving the theories existed, it was unlikely to appear on their feeds or within their social circles. Additionally, other believers would only reinforce the conspiracy theory.
Cheshire pointed out that the adaptable nature of conspiracy theories contributes to their resilience.
Cheshire explained that believers have mentioned the adaptability of conspiracy theories, stating that they can easily be tailored to incorporate any new information because definitive evidence is often lacking. For instance, if believers are uncertain about whether chemtrails are used for population control, the narrative can smoothly transition to weather manipulation and climate change without the need for additional evidence or facts.
Xiao pointed out that the visibility of contrails in our daily lives also contributes to the intrigue surrounding the theory. The fact that we can physically see these contrails further piques curiosity and draws more attention to the concept.
One believer mentioned to Xiao and Cheshire that chemtrails have been a captivating conspiracy, as they are clearly visible yet often overlooked by many.
Xiao pointed out that while some may find the theory absurd, believers have valid concerns rooted in societal and environmental issues that deserve consideration. Issues such as government distrust, environmental worries, or health struggles can all contribute to the credibility of the chemtrails theory, hinting at a potential underlying cause for these societal challenges.
Experts have stated that there is no evidence to support the existence of chemtrails. Harvard researchers also mentioned that even if there was a government conspiracy involving aircraft contrails, it would be challenging to conceal such a large-scale program due to the number of people required to be involved.
Scientists worldwide have conducted investigations to debunk the chemtrails conspiracy theory, explaining the existence of contrails and their variations extensively. Even Edward Snowden, the whistleblower who leaked classified information from the National Security Agency, has stated that chemtrails "are not a thing."
Despite the evidence, believers remain unconvinced. The belief in this theory has become so strong that meteorologists globally have reported an increase in harassment and threats, especially after extreme weather events. Conspiracy theorists often accuse them of withholding information.
Xiao mentioned that in these communities, the collective agreement tends to outweigh the logical objections raised by scientists. This can make it very challenging for accurate information to change these firmly held beliefs.
Editor's P/S:
The chemtrails conspiracy theory, a persistent belief that the government is spraying chemicals from aircraft contrails, has gained traction despite scientific evidence disproving it. This theory stems from historical instances of government chemical testing and the visibility of contrails in the sky. While experts have debunked the chemtrails theory, believers remain unconvinced, citing concerns about government distrust and environmental issues. Social media has also played a role in amplifying the theory, as algorithms show people information that aligns with their beliefs and ex-believers have reported the abundance of conspiracy-related content on their feeds. The resilience of conspiracy theories, their adaptability to incorporate new information, and the visibility of contrails contribute to their intrigue and longevity.
It is crucial to rely on scientific evidence and reputable sources of information when forming beliefs. Conspiracies can distract from real issues and erode trust in experts and institutions. While skepticism is healthy, it should be grounded in critical thinking and a willingness to consider evidence. It is also important to acknowledge that conspiracy theories can arise from genuine concerns, such as government distrust or environmental worries. Addressing these concerns through transparent communication and evidence-based policies can help prevent the spread of misinformation and foster a more informed society.