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Study Reveals Risks of Marine Cloud Brightening in Geoengineering

9/23/2025

23 4 Full Breakdown

Summary

Story summary

A new study analyzes marine cloud brightening (MCB) and stratospheric aerosol injection (SAI) as geoengineering options.
MCB could cut El Niño-Southern Oscillation (ENSO) amplitude by 61% and disrupt weather patterns; SAI has a smaller ENSO impact.
Geoengineering is a temporary measure, not a substitute for reducing greenhouse gas emissions.
Risks include complacency and dependence; policymakers should apply strict, gradual limits.

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Story summary

A new study analyzes marine cloud brightening (MCB) and stratospheric aerosol injection (SAI) as geoengineering options.
MCB could cut El Niño-Southern Oscillation (ENSO) amplitude by 61% and disrupt weather patterns; SAI has a smaller ENSO impact.
Geoengineering is a temporary measure, not a substitute for reducing greenhouse gas emissions.
Risks include complacency and dependence; policymakers should apply strict, gradual limits.