The High Frequency Active Auroral Research Program has been blamed for hurricanes, earthquakes, and even snowstorms. But what does the science actually say?
It happens every time a major weather event strikes. The phone rings at the HAARP facility in Alaska. Emails flood in. Social media explodes with the same recurring accusation: the U.S. government is weaponizing the ionosphere to control the weather.
It happened after Hurricane Helene. It happened after Hurricane Melissa. It happened when a snowstorm hit Iowa during the 2024 caucuses, with far-right influencer Laura Loomer suggesting HAARP created the blizzard to dampen voter turnout. Most recently, when geomagnetic storms caused aurora sightings as far south as Texas late last year, Facebook filled with posts claiming these lights were not natural—manufactured by scientists at HAARP for sinister purposes.
Advertisement
The theory has persisted for decades, despite repeated debunking by scientists, government agencies, and the facility itself.
What Actually Is HAARP?
HAARP stands for the High-frequency Active Auroral Research Program. Located in Gakona, Alaska, it is owned by the University of Alaska Fairbanks and was originally built by the U.S. military for $290 million.
The facility consists of an array of 180 transmitters, each sitting atop a 72-foot-tall post, arranged in a grid surrounded by Alaskan wilderness. It is, essentially, the world is most powerful ionospheric heater—a high-powered radio transmitter that transmits signals into the ionosphere, the part of the upper atmosphere that begins about 30 miles above Earth is surface.
These transmissions temporarily “heat” or excite the ionosphere. The original military goals were modest: the Navy wanted to develop new forms of long-range communication, and the Air Force wanted to study “killer” electrons that sometimes damage satellites.
“The most succinct way to summarize what HAARP now studies is ‘the effects that the ionosphere has on signals, on radio-wave propagation,” David Hysell, an engineering professor at Cornell who has conducted experiments at the facility, told The Atlantic.
That is not particularly exciting. But it is also not a weather weapon.
