An uplifting effect The rise in sea level that is occurring from the melting of Antarctica is only going to accelerate as climate warms. However, Larour et al. report that crustal uplift in the Amundsen Sea sector is helping to reduce grounding line retreat, thereby stabilizing the ice sheet and slowing its rate of mass loss (see the Perspective by Steig). This effect will not stop or reverse ice sheet loss, but it could delay the progress of dynamic mass loss of Thwaites Glacier by approximately 20 years. Science , this issue p. eaav7908 ; see also p. 936