Phys.org  October 27, 2024 The Last Interglacial period (LIG) was characterized by a long-term Arctic atmospheric warming above the preindustrial level. The LIG thus provides a case study of Arctic feedback mechanisms of the cryosphere-ocean circulation-climate system under warm climatic conditions. Previous studies suggested a delay in the LIG peak warming in the North Atlantic compared to the Southern Ocean and evoked the possibility of southward extension of Arctic Sea ice to the southern Norwegian Sea during the early LIG. An international team of researchers (Norway, Germany) compiled new and published proxy data on past changes in sea ice distribution, […]