This study investigates the reversibility of sea level rise in the Subpolar North Atlantic (SPNA) under atmospheric carbon dioxide (CO2) removal scenarios using idealized climate model experiments. The SPNA exhibits faster sea level rise and decline than the global mean, primarily driven by the Atlantic Meridional Overturning Circulation (AMOC) response to CO2 forcing. Enhanced meridional salinity transport during AMOC recovery plays a key role in the rapid regional sea level decline. The findings highlight the potential for significant sea level changes in the SPNA and surrounding coastal areas under climate mitigation efforts.
