Articles | Volume 13, issue 1
Earth Syst. Dynam., 13, 219–230, 2022
https://doi.org/10.5194/esd-13-219-2022
Earth Syst. Dynam., 13, 219–230, 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 et al.

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Short summary
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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