《自然·地球科学》，2025年2月3日 新的卫星测绘模型显示，2016年至2021年间，格陵兰冰盖上的大型裂缝的尺寸和深度均有所增加。这些裂缝会逐渐削弱冰盖的稳定性。这项研究记录了不断升高的海洋温度如何加速了 […]
《自然—气候变化》，2025年1月21日 北极苔原、森林、湿地和永久冻土储存着大量的碳排放，但新数据显示，这个“北方”地带至少有30%%现在在其生长季节吸收的碳比释放的要多。气温上升已经将这片冰冻的景观变成了一个净碳源[…]
首席作者、剑桥大学的埃里克·沃尔夫博士总结了最近发表在《自然》杂志上的一篇关于125,000年前末次间冰期期间南极洲西部稳定性的论文。当时该地区气温比工业化前高约3°C，全球海平面比工业化前高至少5米，最高可达10米；然而，关键 […]
自然，2025年1月29日 高排放情景下海平面上升速率和幅度的最大不确定性来源是西南极冰盖的命运和稳定性。了解该区域对更高温度的反应对于预测未来海平面上升至关重要。在本研究中，研究人员利用冰芯记录来 […]
《Communications Earth & Environment》，2025年1月22日 自1979年以来，夏季末北极海冰范围缩小了40%以上%。鉴于这一趋势，一项新研究调查了北极气旋如何在短短两周的时间尺度上影响海冰的损失。研究人员发现，夏季气温升高和海冰变薄导致了 […]
自然气候变化，2025年1月6日全球气温上升导致极端海洋变暖事件频率增加，近几十年来北极海冰的迅速消融使得这些水域特别容易受到突然而极端的温度波动的影响。海冰历来通过充当[…]保护北冰洋免受此类变暖事件的影响。
Dr. Robert Kopp, Rutgers University, summarizes his recent Nature Climate Change paper, which takes issue with the utility of the term “tipping points” as a way to communicate urgency for climate ambition. The paper asserts that this term can confuse policy makers and the public, and even distract from or discourage urgently needed climate action. […]
WMO Headquarters in Geneva, 21 January 2025 A high-level launch event at the World Meteorological Organization (WMO) in Geneva on Tuesday marked the official start of the International Year of Glaciers’ Preservation (IYGP), to highlight the need for immediate and deep emissions reductions to “preserve” the critical role of glaciers; and address the equally-urgent challenges […]
Nature Communications, 15 January 2025 Norway’s northernmost archipelago, Svalbard, is the most rapidly warming region of the Arctic and experiences frequent climate extremes. Using AI to map changes in glacier fronts, researchers examined how glaciers in Svalbard have changed since 1985. They found that ocean temperatures had a large impact on peak seasonal retreat rates, […]
Communications Earth & Environment, 16 January 2025 Today’s rapidly rising temperatures in the Arctic are changing the composition of its ecosystems, causing the Arctic to become greener. In turn, this affects the uptake of carbon through photosynthesis, which may potentially offset some of the CO2 released from thawing permafrost. Using sediment cores retrieved from a […]
Copernicus Climate Change Service, 10 January 2025 The EU’s Copernicus Programme has confirmed 2024 as the warmest year on record globally, and the first calendar year exceeding 1.5°C, at 1.60°C above pre-industrial levels. Human-induced climate change remained the primary driver of extreme air and sea surface temperatures; while other factors, such as the El Niño […]
Proceedings of the National Academy of Sciences, 3 December 2024 Climate change is affecting Arctic shoreline sea-level rise and permafrost thaw, as storms intensify and coastal sea ice thins. Coastal erosion is an increasing Arctic hazard as a result, yet the combined impact of sea-level rise and permafrost thaw subsidence on future Arctic coastal erosion […]
Scientific Reports, 3 January 2025 A new Antarctic-wide measuring project (using gravity inversion for bathymetry) that includes all Antarctic ice shelves has shown a deeper continental shelf in many regions, along with previously unknown underwater canyons. These would result in an overall greater exposure of the Antarctic ice sheet’s grounding line (where the ice rests […]
Summarizing recent results from an Arctic sea ice paper last month on which she was co-author, Dr. Alexandra Jahn from the University of Colorado Boulder explained paper calculations of when the first occurrence of ice-free conditions in the Arctic Ocean will likely occur; and how emissions reductions today can greatly limit future ice-free periods and […]
Thank You for 2024! It was wonderful seeing many of you at COP29 in Baku, including at the COP29 Cryosphere Pavilion. The Cryosphere Pavilion this year hosted more than seventy side events over the course of two weeks. We want to extend a warm thank you to everyone – from polar and mountain researchers, to […]