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Explore technical uncertainties in SAI* research
A dynamic, public, scientifically-grounded assessment of the key technical uncertainties in SAI, focusing on questions related to physical and chemical processes and engineering feasibility.
*Stratospheric Aerosol Injection
11 of 23 uncertaintiesClear filters
Uncertainty visualizations
Visualizations
Matrix view
High decision relevance
Medium decision relevance
Volcanic Eruptions During Deployment
Stratospheric Ozone
Cirrus Cloud Response
Large-Scale Modes of Atmospheric or Atmosphere-Ocean Variability
Surface Climate Response to Stratospheric Heating
Extratropical Circulation
Atlantic Meridional Overturning Circulation
Stratospheric Water Vapor
Climate Response Monitoring
Low decision relevance
Low uncertainty
Medium uncertainty
High uncertainty
Research priority
- Lower
- Medium
- High
- Critical
Climate response
Volcanic Eruptions During Deployment
Changes in how a sulfur-rich volcanic eruption impacts the climate during SAI compared to a climate without interventionClimate response
Stratospheric Ozone
Impact on stratospheric ozone due to changes in physical and chemical processesClimate response
Stratospheric Transport Feedback
Effect of stratospheric heating due to aerosol LW absorption on stratospheric transportClimate response
Cirrus Cloud Response
Changes to cirrus clouds due to SAI, such as via changes in vertical temperature gradientClimate response
Large-Scale Modes of Atmospheric or Atmosphere-Ocean Variability
Change in mean-state or variance of large-scale modes of atmospheric or atmosphere-ocean variability — such as the ENSO, NAO, PDO, and SAMClimate response
Surface Climate Response to Stratospheric Heating
Impacts of stratospheric heating on the surface climate via changes to stratospheric dynamics which project onto the tropospheric responseClimate response
Tropical Circulation
Changes in tropical circulation — including monsoons, the MJO and the Walker circulationClimate response
Extratropical Circulation
Changes in extratropical circulation – including jet streams, storm tracks and the polar vorticesClimate response
Atlantic Meridional Overturning Circulation
Changes to Atlantic Meridional Overturning Circulation (AMOC) strength under SAI, including tipping dynamicsClimate response
Stratospheric Water Vapor
Impact of increased aerosol SAD-induced stratospheric heating on eventual increased water vapor in the stratosphereEngineering