Uncertainty
Low
Decision relevance
Medium
Resolvability scale
Long-term sustained deployment
It is likely that a sulfur-rich volcano will erupt at some point during SAI deployment. It is important to determine whether volcanic eruptions during SAI have a different interaction with the climate than without SAI.
Metric
Changes in regional temperature and precipitation due to a Pinatubo-like volcanic eruption are more significant when occurring under SAI than not. In other words, [(SAI + Volcano) - SAI] > [Volcano - Baseline]
Uncertainty
Low
Quaglia et al. (2024) suggests that post-eruption risks are either not increased or reduced due to SAI.
Decision relevance
Medium
Consequence is medium due to potentially significant regional impacts that may occur when an eruption is coupled with SAI.