新研究表明格陵兰岛冰盖消融会导致周边海平面下降

Group 1 - The core finding of the research indicates that while global warming leads to rising sea levels, the melting of the Greenland ice sheet will cause regional sea level decreases around Greenland due to land rebound effects [1][2] - The study predicts that by the end of this century, sea levels around Greenland could decrease by 1 to nearly 4 meters, contrary to the traditional understanding of uniform sea level rise [1] - The research combines a "glacial isostatic adjustment" model with observations of sea level and vertical crustal movement, revealing that the mass loss of the ice sheet is the primary driver of the regional sea level decline [1][2] Group 2 - Measurements from GPS indicate that Greenland's bedrock is rising faster than previously expected, suggesting that mantle flow occurs more rapidly when the ice sheet shrinks [2] - Incorporating mantle flow into predictive models shows that the decline in sea level around Greenland could exceed traditional predictions by 25% to 65% by the end of the century [2] - The decline in sea level poses new challenges for local infrastructure, shipping, and food security, highlighting the importance of understanding the relationship between glacial melting and sea level changes [2]