Fiche de renseignements : changements climatiques et feux de forêt

The document details the increasing intensity and scale of Canadian wildfires driven by climate change, highlighting record-breaking seasons in 2023 and 2025. It analyzes the severe health consequences of wildfire smoke, the economic burden of disaster recovery and insurance, and the disproportionate impact on Indigenous populations. The text argues for a dual approach of defensive adaptation and offensive mitigation through the phase-out of fossil fuels.

• Canada is experiencing more intense and destructive wildfires due to warming that occurs twice as fast as the global average. The 2023 season was the most destructive in history, with 16.5 million hectares burned, which is nearly seven times the historical average. The 2025 season was the second worst, with over 8.3 million hectares burned across nearly all provinces and territories.
• Climate change is altering fire patterns by extending the fire season, increasing the frequency of lightning, and creating drier conditions. In 2023, lightning-triggered fires accounted for 93% of the burned area in Canada. Additionally, 'zombie fires' are now smoldering during the winter, and the probability of extreme fire weather in Eastern Canada more than doubled in 2023 due to climate change.
• Wildfire smoke poses severe health risks and creates significant economic costs for the healthcare system. Between 2020 and 2024, smoke caused an average of 1,400 deaths per year in Canada, while the 2023 Canadian fires are estimated to have caused over 80,000 premature deaths globally. In June 2023 alone, health-related costs from smoke in Ontario were estimated at over 1.2 billion dollars.
• Wildfires cause substantial economic disruption, increasing the cost of living and insurance. Fire protection costs now regularly exceed 1 billion dollars annually. Specific disasters have had massive impacts, such as the 2016 Fort McMurray fires, which cost 9 billion dollars and displaced 85,000 people. Between 2015 and 2025, climate change is estimated to add a burden of 700 dollars per year to the average household.
• Indigenous communities are disproportionately affected by wildfires, with 80% of majority-Indigenous communities located in fire-prone regions. Over 42% of wildfire-related evacuations occurred in these communities. The document suggests that supporting traditional cultural burning practices can help reduce the risk of uncontrolled fires.
• Effective management requires a combination of defensive adaptation and offensive mitigation. Recommended defensive measures include strengthening building codes, limiting development in high-risk zones, and using prescribed burns near communities. However, the document notes that mechanical thinning and prescribed burns are too costly and risky for large-scale application across all Canadian forests and cannot stop extreme weather-driven fires.

APA

Canadian Climate Institute (2026). Fiche de renseignements : changements climatiques et feux de forêt. https://institutclimatique.ca/news/fiche-de-renseignements-changements-climatiques-et-feux-de-foret/

Chicago

Canadian Climate Institute. Fiche de renseignements : changements climatiques et feux de forêt. 2026. https://institutclimatique.ca/news/fiche-de-renseignements-changements-climatiques-et-feux-de-foret/.

Wikipedia

{{cite report |author=Canadian Climate Institute |title=Fiche de renseignements : changements climatiques et feux de forêt |date=10 July 2026 |url=https://institutclimatique.ca/news/fiche-de-renseignements-changements-climatiques-et-feux-de-foret/ |access-date=23 October 2026 |via=Climate Insights Directory}}

BibTeX

@techreport{canadianclimateinstitute2026fiche, author = {{Canadian Climate Institute}}, title = {{Fiche de renseignements : changements climatiques et feux de forêt}}, institution = {Canadian Climate Institute}, year = {2026}, month = jul, url = {https://institutclimatique.ca/news/fiche-de-renseignements-changements-climatiques-et-feux-de-foret/}, urldate = {2026-10-23}, note = {Indexed by Climate Insights Directory} }