快速变暖使南极半岛濒临不可逆转的变化

环境科学前沿,2026年2月20日

自 20 世纪 50 年代以来,南极半岛每十年升温 0.3-0.5°C ,比全球平均升温速度快两倍。如果全球变暖超过 2°C,该地区将面临不可逆转的巨大损失,包括海冰的严重损失、冰架的坍塌和冰川的迅速后退。这些变化增加了自我强化过程的风险,将扩大气候变暖,导致海平面进一步上升、海洋环流改变以及其他影响,其范围远远超出南极洲。海冰的消失和极端天气的增加已经导致企鹅筑巢地被淹和帝企鹅繁殖地的失败,而磷虾分布的变化则威胁着海洋食物网和渔业的稳定。快速减少碳排放可以限制最严重的长期影响,而持续变暖则需要更具变革性的保护战略,以保护生物多样性、渔业、旅游业和《南极条约》体系管辖下的其他业务。.

帕姆·皮尔森

最新帖子

COP31 Cryosphere Pavilion: Call for Side Events and ECS Volunteers

Dear Friends of the Cryosphere Pavilion and Cryosphere Capsule Readers! We are happy to announce…

1 周 ago

Extreme Sea-Level Rise Could Lead to Large-Scale Coastal Relocation in the United Kingdom

Nature Communications, 21 July 2026 Rising sea levels driven by ocean warming and ice sheet…

1 周 ago

East Antarctic Ice Shelf Melt Driven by Warm Surface Ocean Waters

Journal of Geophysical Research: Oceans, 26 June 2026 East Antarctica has long been considered less…

1 周 ago

Increasing Decline in Antarctic Bottom Water Volume Since 2000s

Geophysical Research Letters, 9 July 2026 Antarctic Bottom Water (AABW) is the cold, dense water…

1 周 ago

Record-Low Arctic Winter Sea Ice in 2025 and 2026 Signals Continued Decline

PNAS, 20 July 2026 After several years in the early 2020s when Arctic winter sea…

1 周 ago

AMOC Weakening and Permafrost Thaw During Overshoot of the 1.5°C Paris Limit

Nature Communications, 16 July 2026 Temporarily exceeding global warming targets increases the risk of long-lasting…

1 周 ago