Jun 8, 2025

Prof. Tim Tangherlini Explains How the Chemtrail Conspiracy Theory Has Come To Be

From The Guardian

Eight US states seek to outlaw chemtrails – even though they aren’t real

By Edward Helmore

Political leaders love an empty statement or proclamation, but when Louisiana’s state house of representatives moved against “chemtrails” last week, they were literally seeking to combat something that does not exist.

It was an act of political symbolism that delved deep into the sort of anti-government conspiracy theories that have flourished under Donald Trump and are taking rooting in some US legislative chambers across the US.

Known to less conspiratorially minded as aircraft contrails, or the white vaporous lines streaming out of an airplane’s engines at altitude, chemtrails are a longstanding conspiracy theory...

Timothy Tangherlini, a professor at the Berkeley School of Information who studies the circulation of folklore, says the chemtrails conspiracy theory has a potent history because, like all folktales, it begins with a kernel of history truth – programs like Agent Orange – and speaks to potent contemporary fears...

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Tim Tangherlini recently joined the I School in a joint-appointment with the Department of Scandinavian. His research centers around the circulation of stories on and across social networks, and the ways in which stories are used by individuals in their ongoing negotiation of ideology with the groups to which they belong.

Last updated: June 30, 2025