Whether sparked by lightning, intentional land-clearing, or human-caused accidents, wildfires are burning longer and more often in some northern latitudes as the world warms.
Heat waves and droughts supercharged by climate change, a century of fire suppression, and fast-growing populations have made large, destructive fires more likely.
For decades, scientists have been tracking extreme thunderstorms created by wildfires. However, the ferocity of the storms that have popped up in Canada in 2021 has surprised them.
The extraordinary heatwave that scorched the Pacific Northwest in June 2021 has diminished, but substantial fires continued to burn across the region in July.
More than 40 wildfires were burning across the Canadian province by the end of June 2021, including a cluster of substantial blazes located about 200 kilometers northeast of Vancouver.