A Bold Claim Against Nature's Fire Starter
Vancouver-based startup Skyward Wildfire has emerged with an audacious proposition: it can prevent catastrophic wildfires by stopping the lightning strikes that ignite them. The company, which recently raised $7.9 million Canadian dollars ($5.7 million USD) in seed funding, says it has demonstrated technology capable of significantly reducing cloud-to-ground lightning strikes in targeted storm cells, potentially eliminating one of the most common natural causes of destructive fires.
Lightning-ignited wildfires account for the vast majority of area burned in major fire seasons. During Canada's devastating 2023 fire season, lightning sparked nearly 60% of the wildfires that collectively scorched tens of millions of acres and generated nearly 500 million tons of carbon emissions. If lightning suppression technology proves viable at scale, it could represent one of the highest-leverage interventions available for reducing wildfire risk in a warming world.
The Technology: Cloud Seeding with Chaff
While Skyward has been selective about publicly disclosing its methods, online documents and investigative reporting reveal that the company is using an approach rooted in research that US government agencies began in the early 1960s: seeding thunderclouds with metallic chaff, narrow fiberglass strands coated with aluminum that are normally used by military aircraft to disrupt radar signals.
When dispersed into storm clouds, the conductive chaff particles alter the electrical charge distribution within the cloud, theoretically reducing the voltage differential needed to trigger cloud-to-ground lightning. By neutralizing or redistributing the electrical charges that build up during thunderstorm development, the treatment aims to prevent the formation of the intense electrical channels that constitute lightning strikes.
The company has partnered with Canadian wildfire agencies to conduct field demonstrations. A document released by the World Bank shows that Skyward partnered with Alberta Wildfire in August 2024, reporting a 60-100% reduction in lightning compared to untreated control storm cells. The company says it has since expanded trials with both Alberta and British Columbia wildfire services.
