《自然-通讯》，2024年7月2日 美国阿拉斯加州巨大的朱诺冰原包含一千多条冰川，在过去十年中迅速融化，与20世纪80年代相比，2010-2020年的融化速度快了五倍。在此期间，冰川冰质量损失量增加了一倍。阿拉斯加的冰原由于气候变暖而特别容易受到影响，因为它们 […]
地球物理学研究通讯，2024 年 6 月 30 日 一项新研究表明，安第斯山脉的热带冰川目前的冰川流失速度比其长期平均水平快 10 倍。作者绘制了自小冰期（公元 1400 年至 1850 年）以来安第斯山脉 5500 多个冰川的变化图，以此来衡量当今的冰川流失情况 […]
从高纬度地区到山区，全球冰川对化石燃料排放的反应比预期的要快。本次活动分享了最新的冰川模型，并描述了如果将排放量控制在1.5°C以内，哪些地区的冰川冰最多可以得到保留。特里布万大学的Mohan Chand博士主持了本次会议。博士[…]
《自然-地球科学》 2024年6月25日 研究人员长期以来一直推测，可能存在一些能够解释遥远过去冰盖造成异常快速海平面上升的过程，例如海洋冰崖不稳定性（MICI）。这项新研究发现，温暖海水的失控侵入南极冰盖之下可能正是这样一个过程，[...]
新闻简报，2024年6月25日 关注科学家联盟牵头的一项研究得出结论，到2050年，近300万人将居住在基础设施面临每月洪水威胁的社区，其中包括数百所学校、医院和政府大楼。路易斯安那州、新泽西州、佛罗里达州、马里兰州和加利福尼亚州等州拥有大量 […]
第46届南极条约协商会议和第26届南极环境保护委员会会议在印度喀拉拉邦科钦举行 | 2024年5月20日至30日 首次，南极条约会议着手制定旅游业框架，以应对其快速发展和对环境影响日益增长的担忧。作为今年的主要成果之一，各缔约方通过了制定首个 […]
Mountain areas are key for climate adaptation efforts due to their transboundary and global importance (natural hazards, water towers, global biodiversity hotspots), high vulnerability to climate change, and tendency to host marginalized and isolated communities. This panel focused on the need for mountain-based adaptation funding. Speakers outlined pathways for leveraging finance further, such as finding […]
The Cryosphere, 3 June 2024 A new model incorporating the latest ice-ocean interactions projects that future stability of West Antarctica’s massive Thwaites Glacier relies on small “pinning points” where it rests on the bedrock. The speed at which increasingly warm ocean waters erode these pinning points will play an important role in determining the future […]
Communications Earth & Environment, 13 June 2024 The Hudson Bay polar bear population, comprising three of the world’s 19 remaining groups (about 4000 individuals), will go locally extinct in the next few decades if today’s emissions continue, a study this week found. This is due to projected loss not only of sea ice extent, but […]
The Arctic is currently warming up to four times faster than the rest of the planet. Rapidly disappearing Arctic sea ice impacts weather systems across America, Europe and Asia, generating frequent and more powerful extreme events than ever observed before. Critical thresholds are likely to be passed if the global warming exceeds 1.5C, impacting the […]
Dear Cryosphere Capsule readers, It has been a pleasure seeing many of you in Bonn this week during the annual UNFCCC Subsidiary Body meetings! Updates on the main cryosphere takeaways from both the recent ATCM/CEP conclusion in Kochi as well as a debrief on SB60 will be shared next Friday, especially as we look forward […]
Proceedings of the National Academy of Sciences, 20 May 2024 Seawater pulses from tides moving beneath the vulnerable Thwaites Glacier has created a 6-kilometer zone where warm water repeatedly flows underneath the ice, speeding up melting. This tidal pulsing has increased the glacier’s instability, and therefore the rate at which it contributes to global sea-level […]
Geophysical Research Letters, 20 May 2024 Antarctic sea ice reached historically low levels in 2023, with over 2 million square kilometers less ice than usual during winter. This study is one of the first to directly link fossil fuel emissions with that sharp decline in Antarctic sea ice. In terms of probability, the record-breaking low […]
Nature Reviews Earth & Environment, 21 May 2024 This review paper maps the global distribution of glacial lakes, consolidating historical trends of sudden outburst flooding to predict future hazards and associated risks in each region. More than 3,000 glacial lake outburst floods (GLOFs) have occurred during the past thousand years, particularly in High Mountain Asia, […]
The Arctic and Southern Oceans are under serious threat from warming, acidification, freshening, and ice loss. These changes are already visible today and have growing impacts on food webs, ecosystems, fisheries, and global weather patterns. This session draws attention to the societal and political impacts of fossil fuel emissions, emphasizing the importance of 1.5°C. Speakers […]