Overview

• Antarctic ice melt's interaction with Earth's mantle can slow or accelerate sea level rise depending on emission levels.
• Post-glacial uplift from melting ice can act as a natural brake if emissions are reduced, decreasing Antarctica's contribution to sea level rise by up to 40%.
• High emissions could cause the rebounding land to push more water away from Antarctica, increasing sea levels along populated coastlines.
• The 3D model used in the study provides detailed insights into the mantle's variability under Antarctica.
• Island nations, despite contributing the least to global emissions, are expected to face the most severe consequences.