Articles | Volume 21, issue 3
https://doi.org/10.5194/nhess-21-941-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/nhess-21-941-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
11 Mar 2021
Research article |
| 11 Mar 2021
| 11 Mar 2021
Attribution of the Australian bushfire risk to anthropogenic climate change
Geert Jan van Oldenborgh
CORRESPONDING AUTHOR
Royal Netherlands Meteorological Institute (KNMI), De Bilt, the Netherlands
Folmer Krikken
Royal Netherlands Meteorological Institute (KNMI), De Bilt, the Netherlands
Sophie Lewis
School of Science, University of New South Wales, Canberra, ACT, Australia
Nicholas J. Leach
Atmospheric, Oceanic and Planetary Physics, Department of Physics, University of Oxford, Oxford, UK
Flavio Lehner
Department of Earth and Atmospheric Sciences, Cornell University, Ithaca, USA
Climate and Global Dynamics Laboratory, National Center for Atmospheric Research, Boulder, USA
Institute for Atmospheric and Climate Science, ETH Zürich, Zurich, Switzerland
Kate R. Saunders
Delft Institute of Applied Mathematics, Delft University of Technology, Delft, the Netherlands
Michiel van Weele
Royal Netherlands Meteorological Institute (KNMI), De Bilt, the Netherlands
Karsten Haustein
Environmental Change Institute, University of Oxford, Oxford, UK
Environmental Change Institute, University of Oxford, Oxford, UK
Oxford e-Research Centre, University of Oxford, Oxford, UK
David Wallom
Oxford e-Research Centre, University of Oxford, Oxford, UK
Sarah Sparrow
Oxford e-Research Centre, University of Oxford, Oxford, UK
Julie Arrighi
Red Cross Red Crescent Climate Centre, the Hague, the Netherlands
Global Disaster Preparedness Center, Washington, DC, USA
Roop K. Singh
Red Cross Red Crescent Climate Centre, the Hague, the Netherlands
Maarten K. van Aalst
Red Cross Red Crescent Climate Centre, the Hague, the Netherlands
Faculty of Geo-Information Science and Earth Observation, University of Twente, Enschede, the Netherlands
International Research Institute for Climate and Society, Columbia University, New York, USA
Sjoukje Y. Philip
Royal Netherlands Meteorological Institute (KNMI), De Bilt, the Netherlands
Robert Vautard
Institut Pierre-Simon Laplace, Gif-sur-Yvette, France
Friederike E. L. Otto
Environmental Change Institute, University of Oxford, Oxford, UK
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Latest update: 14 Apr 2026
Short summary
Southeastern Australia suffered from disastrous bushfires during the 2019/20 fire season, raising the question whether these have become more likely due to climate change. We found no attributable trend in extreme annual or monthly low precipitation but a clear shift towards more extreme heat. However, this shift is underestimated by the models. Analysing fire weather directly, we found that the chance has increased by at least 30 %, but due to the underestimation it could well be higher.
Southeastern Australia suffered from disastrous bushfires during the 2019/20 fire season,...
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