Scientists Propose Solar Dimming to Mitigate El Niño Effects
Scientists Propose Solar Dimming to Mitigate El Niño Effects
US · Published Jul 14, 2026
Researchers from UC San Diego, led by climate scientist Kate Ricke, have proposed a controversial method to mitigate the effects of El Niño by using solar geoengineering.
The study, published in the journal Science Advances, suggests injecting aerosols into the Earth's stratosphere to brighten marine clouds, a process known as 'marine cloud brightening.' This would reflect sunlight back into space, potentially cooling the Earth's surface and reducing the intensity of extreme weather events associated with El Niño.

Impact & Risks

The proposed solar geoengineering method could help mitigate the severe impacts of El Niño, which include extreme weather events and potential economic losses in the trillions of dollars globally. However, the approach has sparked concerns among climate scientists, who warn that it could distract from essential efforts to reduce carbon emissions. Additionally, the long-term deployment of such technology may lead to unforeseen environmental consequences. Critics argue that the models used to simulate the effects of solar dimming are imperfect, raising the risk of creating new problems that could outweigh the benefits.

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