Canada’s 2023 wildfires burned 15.1 million hectares and released 554 million tonnes of carbon; scientists found most came from soil and peat beneath the trees

In 2023, Canada faced an unprecedented wildfire season that unleashed staggering carbon emissions from ancient underground soil and peat. These fires devastated extensive landscapes, liberating long-stored carbon accumulated over thousands of years. The challenge with subterranean fires lies in their resilience, transforming carbon sinks into sources of emissions, which exacerbates global warming and intensifies future wildfire risks.

Canada’s 2023 wildfires burned 15.1 million hectares and released 554 million tonnes of carbon; scientists found most came from soil and peat beneath the trees
In 2023, Canada faced an unprecedented wildfire season that unleashed staggering carbon emissions from ancient underground soil and peat. These fires devastated extensive landscapes, liberating long-stored carbon accumulated over thousands of years. The challenge with subterranean fires lies in their resilience, transforming carbon sinks into sources of emissions, which exacerbates global warming and intensifies future wildfire risks.