Articles | Volume 21, issue 19
Atmos. Chem. Phys., 21, 14507–14533, 2021
https://doi.org/10.5194/acp-21-14507-2021

Special issue: Resolving uncertainties in solar geoengineering through multi-model...

Atmos. Chem. Phys., 21, 14507–14533, 2021
https://doi.org/10.5194/acp-21-14507-2021

Research article 01 Oct 2021

Research article | 01 Oct 2021

Assessing the potential efficacy of marine cloud brightening for cooling Earth using a simple heuristic model

Robert Wood

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Short summary
A simple model is described to assess the potential for increasing solar reflection by augmenting the aerosol population below marine low clouds, which increases the concentration of cloud droplets. The model is used to predict global cooling from marine cloud brightening climate intervention as a function of the quantity, size, and lifetime of salt particles injected per sprayer, the number of sprayers deployed, the cloud updraft speed, and unperturbed aerosol size distribution.
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