Human-induced climate change has more than doubled the likelihood of the extreme weather conditions that fueled Canada’s destructive 2026 wildfire season, finds a rapid analysis. As of early August, thousands of wildfires torched more than 3.8 million hectares (9.4 million acres) across the country — an area already significantly in excess of Canada’s 30-year annual average of 2.7 million hectares (6.7 million acres). The 2026 wildfire season has escalated with astonishing speed, with approximately 94% of the total burned area accumulating in a brief five-week window between late June and late July. In its analysis of Canada’s wildfires, the team at World Weather Attribution (WWA), a global network of scientists who examine the influence of climate change on extreme weather events, focused on a metric called daily severity rating (DSR). It integrates temperature, wind, humidity and dryness to measure how difficult a fire is to suppress once ignited. By combining observational data with climate models, the researchers found that the kind of fires that burned in July 2026 can now be expected in today’s climate influenced by greenhouse gas emissions every two to six years in the Northwest Territories and every six to 15 years in Ontario. In a pre-industrial, cooler climate, such fires would occur every 50 years or so. “Our research is yet another piece of evidence for this shift being due to climate change,” Theodore Keeping, research associate in extreme weather and climate change at Imperial College London, said in a press release. “The geographic spread…This article was originally published on Mongabay
