The transition from moderate to high risk is informed by an assessment of risks at higher levels of warming than present. Nearly all climate models show warmer temperatures around Antarctica in conjunction with rising global mean temperature, and all ice sheet models show sustained mass loss from the WAIS after temperature increase halts  at various levels between 1.5°℃ and 5ºC. An increasing fraction of ice sheet models shows additional sustained mass loss from the East Antarctic Ice Sheet  for peak warming between 2ºC and 4ºC, and all ice sheet models show mass loss for peak warming higher than 4ºC. Therefore, we assess an increasing link between MISI, WAIS collapse and Antarctic mass loss, for increasing temperature levels .
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report