It’s a wild promise, and one which my colleague James Temple dug into for his most up-to-date story. (You need to learn the entire thing; there’s a ton of fascinating historical past and quirky science.) As James factors out in his story, there’s loads of uncertainty about simply how effectively this is able to work and below what circumstances. However I used to be left with one other lingering query: If we are able to stop lightning-sparked fires, ought to we?
I can’t assist myself, so let’s take only a second to speak about how this lightning prevention technique supposedly works. Mainly, lightning is static discharge—nearly the identical factor as once you rub your socks on a carpet after which contact a doorknob, as James places it.
Once you shuffle throughout a rug, the friction causes electrons to leap round, so ions construct up and an electrical subject varieties. Within the case of lightning, it’s snowflakes and tiny ice pellets referred to as graupel rubbing collectively. They get separated by updrafts, build up a cost distinction, and ultimately trigger an electrostatic discharge—lightning.
Beginning in concerning the Nineteen Fifties, researchers began to marvel if they could be capable of stop lightning strikes. Some got here up with the thought of utilizing metallic chaff, fiberglass strands coated with aluminum. (The navy was already utilizing the fabric to disrupt radar indicators.) The thought is that the chaff can act as a conductor, lowering the buildup of static electrical energy that might in any other case lead to a lightning strike.
The speculation is sound sufficient, however outcomes up to now have been combined. Some analysis suggests you would possibly want excessive concentrations of chaff to forestall lightning successfully. A few of the early research that examined the method have been small. And there’s not a lot data accessible from Skyward Wildfire about its efforts, as the corporate hasn’t launched information from subject trials or revealed any peer-reviewed papers that we may discover.
Even when this technique actually can work to cease lightning, ought to we use it?
Lightning-caused fires may very well be a rising downside with local weather change. Some analysis has proven that they’ve considerably elevated within the Arctic boreal area, the place the planet is warming quickest.
However hearth isn’t an inherently unhealthy factor—many ecosystems advanced to burn. A few of the worst wildfires we see right this moment consequence from a mix of climate-fueled circumstances with insurance policies which have allowed gas to construct up in order that when fires do begin, they burn uncontrolled.