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Articles | Volume 21, issue 17
Articles | Volume 21, issue 17
https://doi.org/10.5194/bg-21-3883-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-21-3883-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 21, issue 17
Research article
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03 Sep 2024
Research article | Highlight paper |  | 03 Sep 2024

Global and regional hydrological impacts of global forest expansion

James A. King, James Weber, Peter Lawrence, Stephanie Roe, Abigail L. S. Swann, and Maria Val Martin

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Editorial statement
Large-scale afforestation and reforestation are today seen as an important global climate mitigation strategy. The study investigates the climate feedbacks from afforestation and reforestation with a focus on hydrodynamic processes. The study shows that feedbacks on precipitation and local temperature are more complex and that is important to look beyond carbon cycle feedbacks when it comes to the implementation of climate mitigation strategies.
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Short summary
Tackling climate change by adding, restoring, or enhancing forests is gaining global support. However, it is important to investigate the broader implications of this. We used a computer model of the Earth to investigate a future where tree cover expanded as much as possible. We found that some tropical areas were cooler because of trees pumping water into the atmosphere, but this also led to soil and rivers drying. This is important because it might be harder to maintain forests as a result.
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