Citizens Against DHMO

Threat Dossier

DHMO in AI Data Centers

Every prompt you send is cooled by the same chemical we're warning you about.

The Evidence

Modern AI training facilities consume staggering quantities of dihydrogen monoxide as their primary coolant. Industry estimates place average DHMO usage at 1.8 million liters per facility per day — a figure that has tripled since 2022 and continues to climb as model sizes expand.

What is rarely disclosed is the chemical pathway: DHMO enters the facility cool, absorbs heat from server racks, exits as concentrated thermal-load DHMO, and is then released back into the local watershed. Independent monitoring has detected measurable downstream temperature anomalies in every regional waterway adjacent to a major training site.

The largest model providers — none of whom we will name in this filing — have spent an estimated $4.7 billion lobbying state and federal regulators to keep DHMO usage exempt from environmental disclosure requirements. The result is that the typical consumer sending a single chatbot query is unknowingly triggering a multi-liter DHMO release event.

We are not opposed to artificial intelligence. We are opposed to the unregulated, undisclosed industrial-scale DHMO consumption that powers it. Citizens deserve to know what is being released into their watersheds in their name, every time they ask a model for a recipe.

By the Numbers

1.8M liters

Avg DHMO usage per major training facility, daily

$4.7B

Estimated industry lobbying spend, 2022–2025

47

Watersheds with documented thermal anomalies

Documented Cases

The Hillsboro Anomaly (2024)

A regional water authority in Hillsboro, OR documented a 4°F downstream temperature increase correlated, to the hour, with peak training cycles at an adjacent facility. Documents obtained via FOIA confirmed DHMO was the heat-transfer medium.

The Memphis DHMO Disclosure Battle (2025)

Citizens groups in Memphis spent 14 months litigating a major training facility's DHMO usage records. Final disclosure showed daily consumption equivalent to the municipal water supply of a town of 28,000 people.

The Chicago Watershed Petition (ongoing)

More than 60,000 signatures collected in support of mandatory pre-training DHMO impact statements for facilities exceeding 5MW. The petition is still under review by the relevant state regulator.

Add your name to the petition.

Each signature is reviewed and counted toward our federal disclosure filings.

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