What causes a record-breaking fire season?

Research SummaryWhat causes a record-breaking fire season?

The 2023 wildfire season in Canada was a record-breaker with unprecedented environmental and community effects.

Aerial photo of valley

Written with Dr. Mike Flannigan, "Canada Under Fire – Drivers and Impacts of the Record-Breaking 2023 Wildfire Season" looks at what caused this historic wildfire season and points out how climate change is making wildfires more dangerous and intense. The authors emphasize the importance of improving fire management strategies and getting communities ready for future fires.

Objectives

The researchers aimed to do a few things: they looked at how long and severe the 2023 wildfire season was, figured out which environmental factors were making wildfires more intense, and evaluated how these fires affected communities.


Methods

Research methods:

  • Nation-wide wildfire report analysis
  • fire weather data from April to October 2023
  • Environmental assessments
  • Comparative analysis (1991-2020)
  • Climate data and community impact assessments

Research tools:

  • Geographic information system (GIS) mapping
  • Climate modeling
  • Air quality monitoring systems

Findings

In 2023, Canada had its worst wildfire season ever. The fires caused more than 200 communities to evacuate, exposed millions to smoky air pollution, and put an unprecedented strain on firefighting resources.

This was mainly because of the early melting of snow, ongoing drought in western Canada, sudden drought in eastern Canada, and warming from climate change.


Authors

Piyush Jain, Quinn E. Barber, Stephen W. Taylor, Ellen Whitman, Dante Castellanos Acuna, Yan Boulanger, Raphaël D. Chavardès, Jack Chen, Peter Englefield, Mike Flannigan, Martin P. Girardin, Chelene C. Hanes, John Little, Kimberly Morrison, Rob S. Skakun, Dan K. Thompson, Xianli Wang, Marc-André Parisien


MLA Citation

Jain, Piyush, et al. “Canada Under Fire – Drivers and Impacts of the Record-Breaking 2023 Wildfire Season.” Nature Communications, vol. 2, Sept. 2024. https://doi.org/10.1038/s41467-024-51154-7