Antarctic Ice Sheet not yet destabilized but tipping points may be reached – new findings from TiPACCs

  • Post published:September 8, 2023
  • Reading time:3 mins read
The West Antarctic Ice Sheet

A pioneering study from lead authors Emily Hill and Ronja Reese, together with colleagues from the TiPACCs project, show that the west Antarctic ice sheet has not yet reached its tipping point towards irreversible collapse.

Have you wondered what would happen if such a tipping point in the ice sheet is crossed? We’ve been hard at work both unpacking the possibilities through modeling, writing and revising the papers, and creating a video explaining the science behind it all.

The two papers by Emily, Ronja, and colleagues are available to read now on The Cryosphere:

The stability of present-day Antarctic grounding lines – Part 1: No indication of marine ice sheet instability in the current geometry

Emily A. Hill, Benoît Urruty, Ronja Reese, Julius Garbe, Olivier Gagliardini, Gaël Durand, Fabien Gillet-Chaulet, G. Hilmar Gudmundsson, Ricarda Winkelmann, Mondher Chekki, David Chandler, and Petra M. Langebroek

The stability of present-day Antarctic grounding lines – Part 2: Onset of irreversible retreat of Amundsen Sea glaciers under current climate on centennial timescales cannot be excluded

Ronja Reese, Julius Garbe, Emily A. Hill, Benoît Urruty, Kaitlin A. Naughten, Olivier Gagliardini, Gaël Durand, Fabien Gillet-Chaulet, G. Hilmar Gudmundsson, David Chandler, Petra M. Langebroek, and Ricarda Winkelmann