The Antarctic ice sheet does not behave as one single tipping element, but as a set of interacting basins with different critical thresholds. This is the finding of a new study by the Potsdam Institute for Climate Impact Research (PIK) and the Max Planck Institute of Geoanthropology (MPI-GEA). With today's warming, about 40% of the ice stored in West Antarctica may already be committed to long-term loss, while parts of East Antarctica could cross thresholds at moderate levels of warming between 2 to 3°C compared to pre-industrial levels, contributing significantly to global long-term sea-level rise.
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