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The absurd fear of dihydrogen monoxide

14 Aug 2026 ยท satire ยท chemistry ยท public awareness ยท humor
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The absurd fear of dihydrogen monoxide
Image: Booyabazooka at English Wikipedia โ€” Public domain

Imagine a chemical so dangerous that it has been petitioned for banning due to its alarming properties. This chemical is known as dihydrogen monoxide, or DHMO, and it is simply water. The term dihydrogen monoxide refers to H2O's molecular composition, where two hydrogen atoms bond with one oxygen atom.

It all started as a parody in the 1980s, where a local newspaper reported on the supposed dangers of this chemical. This satirical take highlighted how irrational fears about chemicals can lead people to overlook basic scientific knowledge. For example, DHMO can cause drowning, which is certainly alarming if presented without context.

This comedic approach gained traction in the 1990s when a group of students at the University of California, Santa Cruz, began circulating flyers warning about DHMO contamination. Their efforts sparked a movement that would lead to widespread public attention. In 1997, a young science fair participant, Nathan Zohner, gathered signatures from peers to ban DHMO, demonstrating how easily misinformation can influence opinions.

As the parody spread, even some public figures fell victim to the joke. In 1998, an Australian lawmaker attempted to initiate a ban on dihydrogen monoxide. Later, a staffer in New Zealand's Green Party expressed support for banning it as well, showcasing how misinformation can enter serious discussions.

In 2002, a radio host mistakenly claimed that Atlanta's water was contaminated with dihydrogen monoxide, and a local TV station reported on the 'scare.' These incidents highlight how a lack of scientific literacy can lead to misplaced fears, even about something as essential as water.

The absurdity of the dihydrogen monoxide parody lies in its ability to reveal just how susceptible people are to sensationalized information. What started as a joke has turned into a notable commentary on chemophobia and public understanding of science.

Don't believe it? Good โ€” check it yourself. Source: Dihydrogen monoxide parody โ€” Wikipedia
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