By early August, the worst Canadian wildfires on record had torched more than 32 million acres, created the most unhealthy air quality ever measured in several North American cities, and spewed more than 25 percent of the globe’s annual carbon dioxide output into the atmosphere. Of the more than 1,000 fires burning, nearly 700 were labeled “OC” or out-of-control, charring an area the size of Greece, from Quebec to well north of the Arctic Circle.
Meanwhile, U.S. policymakers are grappling with the new reality of fire seasons that are longer, more volatile, and increasingly destructive. And more frequently, the solution involves more air attacks on fires, especially when they are in the nascent stages and before they can spread.