Carbon emissions from the 2023 Canadian wildfires

Abstract The 2023 Canadian forest fires have been extreme in scale and intensity with more than seven times the average annual area burned compared to the previous four decades 1 . Here, we quantify the carbon emissions from these fires from May to September 2023 on the basis of inverse modelling of satellite carbon monoxide observations. We find that the magnitude of the carbon emissions is 647 TgC (570–727 TgC), comparable to the annual fossil fuel emissions of large nations, with only India, China and the USA releasing more carbon per year 2 . We find that widespread hot–dry weather was a principal driver of fire spread, with 2023 being the warmest and driest year since at least 1980 3 . Although…

• NA
  National Aeronautics and Space Administration

  Awards: NNH20ZDA001N, 80NSSC22K1066
• CI
  California Institute of Technology
• EC
  European Commission
• NS
  Nuclear Safety and Security Commission
• AR
  Ames Research Center
• JP
  Jet Propulsion Laboratory