新研究：气候变化威胁近六成南极冰架稳定性

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]