Core Viewpoint - A recent study published in the journal Nature indicates that nearly 60% of Antarctic ice shelves may become unstable by 2300 due to climate change, posing a significant threat to global sea levels and coastal ecosystems [1] Group 1: Research Findings - The study analyzed 64 Antarctic ice shelves using climate models, revealing that if greenhouse gas emissions remain high, approximately 41% of ice shelves could be unstable by 2150, increasing to 59% (38 ice shelves) by 2300 [1] - The potential complete melting of these 38 ice shelves could lead to a global sea level rise of 10 meters [1] - If global warming is limited to within 2 degrees Celsius, most ice shelves could remain stable, significantly reducing the risk of sea level rise [1] Group 2: Methodology and Perspective - The researchers took a comprehensive approach by considering both atmospheric and oceanic factors contributing to ice shelf mass loss, rather than focusing solely on atmospheric warming [1] - The study provides a critical point for ice shelf stability, indicating that actual collapses may occur earlier than the projected timelines [1]

Core Insights - A recent study published in the journal "Nature" indicates that up to 59% of Antarctic ice shelves may face the risk of disappearance by 2300 under high emission scenarios, potentially leading to a global sea level rise of up to 10 meters [1][2] - The research highlights the urgency of maintaining low emissions to protect Antarctic ice shelves and coastal regions, as ice loss is significantly reduced in scenarios where warming is kept below 2°C [1][2] Group 1 - The study's model shows that under a low emission scenario, only 1/64 of ice shelves would be at risk of failing by 2300, with risks increasing after 2250 [2] - In contrast, under a high emission scenario approaching 12°C by 2300, 38 (59%) Antarctic ice shelves would be unable to survive, leading to a potential sea level rise of 10 meters [2] - The majority of ice shelf retreat is expected to accelerate starting in 2085, peaking around 2170, with ocean warming identified as the primary driving factor [2] Group 2 - The authors of the study consider their estimates of ice shelf disappearance under high emission scenarios to be conservative, as collapse may also be triggered by damage, cracks, and disintegration [2] - To mitigate future sea level rise and protect the structural integrity of Antarctic ice shelves and ice caps, prioritizing low emission pathways is essential [2] - Further research is needed to gather more data on ocean-ice interactions to enhance future modeling of Antarctic ice shelf stability [2]