Climate change fuels August heat waves across Canada – Results from Canada’s Rapid Extreme Weather Event Attribution system demonstrate that human-caused climate change made heat waves at least 10 times more likely in August in some instances

Analysis from Environment and Climate Change Canada’s Rapid Extreme Weather Event Attribution has shown that, in all cases, human-caused climate change made heat waves in August 2024 more likely to have occurred. In some instances, it was at least 10 times more likely.