Over the weekend, Hawaii was lashed by Hurricane Lala, which has washed away homes, left more than 125,000 people without power, shut down two of the state’s busiest airports, threatened dangerous flash flooding and, at time of writing, has killed one person.
What if we could’ve steered the storm away from Hawaii, into the vast expanse of the empty Pacific Ocean that lies all around the islands—where no one could get hurt?
This scenario might sound like the stuff of science fiction. But earlier this year, a peer-reviewed study published by the Public Library of Science found that it might be possible, and sooner than we think. The study was titled: “Weather Jiu-Jitsu: Prospects for atmospheric nudging to defuse the impact of catastrophic weather extremes.”
According to the paper, the controversial practice of cloud seeding could enable human beings to make hurricanes change direction. The potential results could be astounding: The authors suggested that Hurricane Sandy, which in New York City alone killed 44 people and caused $19 billion of damage in 2012, could’ve been diverted by 200 miles, missing the metropolis entirely.
Cloud seeding, which first succeeded in the U.S. in 1946, is a practice whereby small particles—for example, dry ice, silver iodide, or salt—are dropped into clouds, causing moisture to condense into precipitation. In the 1960s, the U.S. government launched Project Stormfury, an experiment that saw Navy pilots flying into the heart of a hurricane, dodging winds over a hundred miles per hour, to cloud-seed inside it, in the hope of reducing the storm’s power. “The seeding,” the theory went, “would stimulate the formation of a new eyewall that would surround the existing eyewall. The new eyewall would contract, strangling the old eyewall and reducing the intensity of the hurricane.”
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