Articles | Volume 13, issue 1
https://doi.org/10.5194/esd-13-219-2022
https://doi.org/10.5194/esd-13-219-2022
Research article
 | 
31 Jan 2022
Research article |  | 31 Jan 2022

Exploration of a novel geoengineering solution: lighting up tropical forests at night

Xueyuan Gao, Shunlin Liang, Dongdong Wang, Yan Li, Bin He, and Aolin Jia

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Cited articles

Abatayo, A. Lou, Bosetti, V., Casari, M., Ghidoni, R., and Tavoni, M.: Solar geoengineering may lead to excessive cooling and high strategic uncertainty, P. Natl. Acad. Sci. USA, 117, 13393–13398, https://doi.org/10.1073/pnas.1916637117, 2020. 
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Numerical experiments with a coupled Earth system model show that large-scale nighttime artificial lighting in tropical forests will significantly increase carbon sink, local temperature, and precipitation, and it requires less energy than direct air carbon capture for capturing 1 t of carbon, suggesting that it could be a powerful climate mitigation option. Side effects include CO2 outgassing after the termination of the nighttime lighting and impacts on local wildlife.
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