Organic SRM?
17 April 2026 | ZEROGeoengineering.com | Overwhelming public rejection of solar radiation modification (SRM) has forced geoengineering proponents to rebrand. | Organic Solar Radiation Modification
Due to the potential harmful impacts of sulfate aerosols, such as: “deposition of acidic aerosol particles on the Earth’s surface, increasing acidification and ozone depletion, and changing weather patterns,” authors of the paper below suggest Organic Stratospheric Aerosol Injection (OSAI). OSAI would involve the injection of isoprene or monoterpenes, which according to research, are toxic. [1][2]
“…Stratospheric Aerosol Injection (SAI) is one of the most studied methods, particularly using sulfate aerosols. However, sulfate SAI includes several risks, such as deposition of acidic aerosol particles on the Earth’s surface, increasing acidification and ozone depletion, and changing weather patterns. Here we propose an alternative approach, namely Organic Stratospheric Aerosol Injection (OSAI). The OSAI is initiated by an injection of isoprene or monoterpenes, which, according to our conceptual investigations and global model simulations, seem to be plausible candidates for this purpose. The organic SAI is likely to avoid some of the problems inherent to sulfate SAI, even though further research is needed
in terms of its potential influences on stratospheric heating and the ozone layer…”
Kulmala, M., Laakso, A., Ehn, M., Lehtipalo, K., & Kerminen, V.-M. (2026). Organic Solar Radiation Modification. Tellus,
79(1), 6–19. DOI: https://doi.org/10.16993/tellus.4133
Link to Organic Solar Radiation Modification
[1] https://oehha.ca.gov/sites/default/files/media/2025-01/IsopreneIUR010325.pdf
[2] https://pdfs.semanticscholar.org/1d24/deefdb9abc831bc69d63d2f1c5b52ed9b0be.pdf
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