Extreme wildfires in Canada and their contribution to global loss in tree cover and carbon emissions in 2023

© 2024 John Wiley & Sons Ltd.

Bibliographische Detailangaben
Veröffentlicht in:Global change biology. - 1999. - 30(2024), 6 vom: 27. Juni, Seite e17392
1. Verfasser: MacCarthy, James (VerfasserIn)
Weitere Verfasser: Tyukavina, Alexandra, Weisse, Mikaela J, Harris, Nancy, Glen, Erin
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2024
Zugriff auf das übergeordnete Werk:Global change biology
Schlagworte:Journal Article Letter Canada carbon emissions climate change forest loss wildfires Carbon Dioxide 142M471B3J Carbon 7440-44-0
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520 |a Canadian wildfires in 2023 were record breaking with wide-reaching impacts on people, nature, and climate. Extreme heat and low rainfall associated with climate change led to unprecedented forest fires that released enormous amounts of carbon as they burned. This study used data on fire-driven tree cover loss and forest carbon fluxes to estimate the total extent of stand-replacing forest fires and their associated carbon emissions. We found that the 2023 Canadian wildfires burned nearly 7.8 million hectares of forest and accounted for more than a quarter of all tree cover loss globally. Furthermore, forests impacted by wildfires emitted nearly 3 billion tons of CO2 or about 25% more carbon than all primary tropical tree cover loss that year. These results have important implications for global carbon budgets because emissions from these wildfires will largely be excluded from official greenhouse gas reporting 
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