Hydrology and Earth System Sciences
Hydrology and Earth System Sciences
HESS
Articles | Volume 29, issue 9
Articles | Volume 29, issue 9
https://doi.org/10.5194/hess-29-2185-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Special issue:
https://doi.org/10.5194/hess-29-2185-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 29, issue 9
Opinion article
 | 
08 May 2025
Opinion article |  | 08 May 2025

HESS Opinions: Floods and droughts – are land use, soil management, and landscape hydrology more significant drivers than increasing CO2?

Karl Auerswald, Juergen Geist, John N. Quinton, and Peter Fiener

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Short summary
Floods, droughts, and heatwaves are increasing globally. This is often attributed to CO2-driven climate change. However, at the global scale, CO2-driven climate change neither reduces precipitation nor adequately explains droughts. Land-use change, particularly soil sealing, compaction, and drainage, is likely to be more significant for water losses by runoff leading to flooding and water scarcity and is therefore an important part of the solution to mitigate floods, droughts, and heatwaves.
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