Impact of Climate Change on Canada's 2023 Wildfire Season
Author Information
Author(s): Kirchmeier-Young Megan C., Malinina Elizaveta, Barber Quinn E., Garcia Perdomo Karen, Curasi Salvatore R., Liang Yongxiao, Jain Piyush, Gillett Nathan P., Parisien Marc-André, Cannon Alex J., Lima Aranildo R., Arora Vivek K., Boulanger Yan, Melton Joe R., Van Vliet Laura, Zhang Xuebin
Primary Institution: Climate Research Division, Environment and Climate Change Canada
Hypothesis
What role did human-induced climate change play in driving the record-setting area burned of the 2023 wildfire season in Canada?
Conclusion
Human-induced climate change significantly increased the likelihood of the large area burned during the 2023 wildfire season in Canada.
Supporting Evidence
- In 2023, wildfires burned 15 million hectares in Canada, more than doubling the previous record.
- The long fire season was more than five times as likely due to human influence on the climate.
- Simulated emissions from the 2023 wildfire season were eight times their 1985-2022 mean.
- Human influence on the climate significantly increased the likelihood of extreme fire weather conditions.
Takeaway
The 2023 wildfire season in Canada was the worst on record, and climate change made it much more likely to happen. This means that as the planet gets warmer, we can expect more big wildfires.
Methodology
The study used climate models and statistical models to analyze the relationship between area burned and fire weather indices, comparing simulations with and without human influence.
Potential Biases
Potential biases may arise from the models used, particularly in high latitude Boreal regions where burned area is often underestimated.
Limitations
The attribution of wildfire likelihood may vary regionally, and some areas showed inconsistent results across different model datasets.
Digital Object Identifier (DOI)
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