Nature Communications, 2 December 2024 Research from the Norwegian Polar Institute studied ice loss from calving glaciers in the Arctic, focusing on the Austfonna ice cap in Svalbard. Researchers combined satellite data with ocean records and runoff models from 2018-2022. They found that melting and breaking happen mainly in autumn, even for fast-flowing glaciers. In […]
The Cryosphere, 14 March 2025 This study uses ice sheet model simulations to predict how the melting of Greenland’s ice sheet will contribute to global sea-level rise this century. The researchers calibrated the model to accurately reflect observed ice sheet geometry from various climate models in order to simulate future behavior. Predictions indicate a sea-level […]
Friday March 21st marked the first-ever World Day for Glaciers, bringing together global leaders, cryosphere scientists, and policymakers to address the urgent need for glacier preservation and water security in the face of climate change. This high-level event was held at UN Headquarters in New York alongside ongoing events and sessions in Paris. World Day […]
Today marks the first-ever World Day for Glaciers, bringing together global leaders, cryosphere scientists, and policymakers to address the urgent need for glacier preservation and water security in the face of climate change. A high-level event will be held at UN Headquarters in New York from 10am-1pm ET today, alongside ongoing events and sessions in […]
Nature Communications, 6 March 2025 This study reports that the sudden drainage of a lake beneath Thwaites Glacier temporarily doubled the melting of its ice shelf in 2013, pushing ice loss to greater heights than expected. The quick release of lake meltwater, in combination with deep circumpolar ocean waters continually eroding ice shelf cavities, led […]
Proceedings of the National Academy of Sciences, 12 January 2025 The AMOC is a large, intertwined system of ocean currents that transports heat throughout the Atlantic Ocean, playing a key role in the regulation of ocean temperatures and global climate patterns. By quantifying the AMOC’s impact on ocean carbon uptake, this study shows that a […]
Communications Earth and Environment, 7 March 2025 Geo-engineering efforts to add an underwater “curtain” to the fjord of one of Greenland’s largest glaciers would not prevent further retreat under even a low emissions scenario, and comes with a plethora of economic and cultural concerns from local Indigenous Peoples. Previous hypotheses suggested that a curtain or […]
The Arctic and Southern Oceans are crucial components of the global climate system. Their unique ecosystems are under serious threat from warming, acidification, freshening and ice loss. Polar oceans are already experiencing changes in chemistry, and continued warming is leading to population range shifts, changes in food webs, ecosystems, fisheries, and climate regulation. Speakers highlighted […]
Nature, 19 February 2025 A comprehensive analysis from the Glacier Mass Balance Intercomparison Exercise, or GlaMBIE, reveals global glaciers are losing ice at an alarming rate, averaging 270 billion tonnes annually from 2000 to 2023, with a significant acceleration in recent years. This mass loss, surpassing both Greenland and Antarctic ice sheet contributions, made glaciers […]
Nature and Environmental Research Letters, 26 February and 3 March 2025 Two recent studies refine predictions of North Atlantic and Antarctic ocean circulation behavior this century, highlighting the interconnectedness of the Earth’s polar oceans and climate system. Together, the studies emphasize the urgent need for mitigation of emissions, to avoid major disruption to the delicate […]
Nature Communications Earth and Environment, 21 February 2025 A new study reveals a significant structural shift in Antarctic sea ice patterns over the past decade. While Antarctic sea ice showed a long-term slightly increasing trend until 2016, patterns changed in 2017 with multiple consecutive summers displaying record-low amounts of sea ice. By reconstructing sea ice […]
NPJ 气候与大气科学，2025年2月27日 “厄尔尼诺-南方涛动”（ENSO）已知会影响海冰的变率。本研究调查了ENSO对南极海冰可预测性影响的线性和非线性数据趋势。研究结果显示，ENSO对海冰范围的影响并非均一，表现出可预测的[...]
值此首个国际冰川日（3月21日）之际，本次演示文稿将介绍由世界气象组织世界冰川监测服务局协调的一个大型国际研究团队进行的上述近期冰川质量平衡比对研究（GlaMBIE）的结果。GlaMBIE收集、标准化和分析了来自不同实地和[...]的冰川质量变化
《自然-地球与环境》 2025 年 2 月 11 日 一篇最近的评论文章解释了南极大气河流的历史，强调它们导致了 50-70% 的极端降雪，但也引发了大规模的融化事件。该评论警告称，随着全球气温上升，大气河流的频率和强度可能会增加 […]
冰冻圈，2025年1月23日 本研究改进的冰盖建模技术表明，即使没有进一步变暖，当前西南极冰盖的融化速度也显示出该地区未来发生冰盖坍塌的可能性很大。如果海洋温度在未来几个世纪内仅保持在目前的水平，模型预测 [...]