【环球财经】气候变化导致亚南极赫德岛近四分之一冰川融化

Core Insights - Researchers from Monash University have found that nearly a quarter of the glaciers on Heard Island have melted since 1947, indicating significant impacts from climate change [1] Summary by Categories Research Findings - The study published in the journal "The Cryosphere" analyzed the contours and areas of 29 glaciers on Heard Island using topographic maps from 1947 and current satellite images, revealing that approximately 64 square kilometers of glaciers have disappeared, accounting for about 23.1% of the island's original glacier volume [1] - The researchers plan to visit Heard Island later this year to further investigate how glacier retreat may threaten local biodiversity [1] Geographic and Environmental Context - Heard Island is part of Australia's external territory, located about 4,100 kilometers southwest of Perth, with an area of 368 square kilometers and no permanent residents [1] - The island and the McDonald Islands were listed as a UNESCO World Heritage site in 1997 and are notable for being the only active volcanic island group in the sub-Antarctic region, featuring unique glacial landscapes [1] Future Implications - Andrew Mackintosh, Dean of the School of Earth, Atmosphere and Environment at Monash University, stated that current measurements show significant glacier retreat, and the future of these glaciers will depend on how greenhouse gas emissions are managed [1]