Hydrology and Earth System Sciences
Hydrology and Earth System Sciences
HESS
Articles | Volume 30, issue 13
Articles | Volume 30, issue 13
https://doi.org/10.5194/hess-30-4225-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/hess-30-4225-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 30, issue 13
Research article
 | 
08 Jul 2026
Research article |  | 08 Jul 2026

Future global water scarcity partially moderated by vegetation responses to rising CO2

Jessica Stacey, Richard A. Betts, Andrew Hartley, Lina M. Mercado, and Nicola Gedney

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Latest update: 08 Jul 2026
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Short summary
Plants typically transpire less with rising atmospheric carbon dioxide, leaving more water in the ground for human use, but many future water scarcity assessments ignore this effect. We use a land surface model to examine how plant responses to carbon dioxide and climate change affect future water scarcity. Our results suggest that including these plant responses increases overall water availability for most people, highlighting the importance of their inclusion in future water scarcity studies.
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