Geoengineering's role in reducing future Antarctic mass loss is unclear

Idealised geoengineering is unable to prevent significant loss from Antarctica regardless of emissions pathway or year of implementation• Geoengineering in 2050 under high emissions reduces sea level contribution compared to stabilisation but geoengineering in 2100 increases it• Surface mass balance gains initially offset loss under stabilisation, but this may be negated in future by accelerating dynamic loss