欧洲阿尔卑斯山植物生长增加加剧变暖和冰川消融

科学,2022年6月2日 过去四十年来,欧洲阿尔卑斯山林线以上地区四分之三的植物生长有所增加,这一过程被称为“绿化”。尽管绿化可以增加该地区的碳汇能力,但加速的积雪融化加上更适宜植物生长的条件将导致有害的 […]

高纬度巨型冰川下融冰渗透加速冰量流失

冰冻圈,2022年4月21日 北极和南极地区those大型、非常厚的海洋末端冰川比之前认为的更容易受到气温升高的影响。在过去几十年里,尤其是自20世纪90年代末期以来,这些巨型冰川有时会加速向海洋排放冰。这项模型研究解释了其中的机制[...]

本周COP-26视频:“西极冰川:盖兹冰川的奔逃”,嘉宾:Heather Selley 和 Bryony Freer

西南极的盖茨地区冰层流失速度正在加快。最近一项利用卫星数据进行的研究发现,在过去三十年里,该地区冰层的平均速度加速了 24%,其中三个冰川的加速幅度超过 44%。主要发言人包括:利兹大学的 Heather Selley 博士;[...]

野火加剧和永久冻土融化使西伯利亚的巴塔盖卡火山口进一步扩大

新闻简报:2022年5月30日 全球气温上升加速了西伯利亚巴塔盖卡火山口的生长,这是世界上最大的永久冻土滑坡。这个“地下之门”火山口深达86米,宽1公里。几十年前,永久冻土突然融化导致该地区塌陷,形成了火山口 […]

COP-26 本周视频:“减少船舶黑碳排放以保护北极’,主讲人 Sian Prior、Dirk Notz 和 Lisa Koperqualuk

黑碳(BC)加速了北极冰层的融化,并形成了一个加剧全球变暖的反馈循环;同时,它还对当地社区的健康产生影响。随着海冰的减少,穿越北极的航运通道得以开放,北极航运产生的黑碳排放量正在增加。因此,在2015年至2019年期间,航运产生的黑碳排放量在 […]

南极洲发布重大报告

News Briefing: May 2022 At this week’s Antarctic Treaty Mechanism meetings in Berlin, the Scientific Committee on Antarctic Research (SCAR) released a key synopsis of the changes taking place in Antarctica and the Southern Ocean. The ACCE Report summarizes the past decade of scientific evidence; and clearly states that global emissions must be reduced to […]

北极海冰减少增加了弓头鲸的脆弱性

Scientific Reports, 20 May 2022 The combination of rapid sea ice loss with increased human activity – including commercial shipping and oil and gas development – threaten bowhead whale populations in the Arctic. Bowhead whales are one of the few species that live their entire life in Arctic and sub-Arctic regions, living in close association […]

喜马拉雅冰川加速退缩危及南亚农业

Nature Climate Change, 19 May 2022 Rising temperatures will accelerate glacier ice loss in the Hindu Kush Himalaya, disrupting previously reliable freshwater resources for millions. The Himalayan mountains experience the impacts of climate change more intensely than most other regions of the world, due in part to their high altitude. The glaciers in these mountains […]

热带气温上升增加西南极冰盖的冰量流失

Nature Communications, 20 May 2022 Warming in the tropical Pacific Ocean served as the main driver behind the melting of the West Antarctic Ice Sheet ten thousand years ago; and similar conditions today may cause its destabilization. Rising ocean temperatures in the tropics can shift westerly wind currents to the south and generate “atmospheric rivers” […]

COP-26 本周视频:“永久冻土-海冰联系”,嘉宾 Gustaf Hugelius 和 Robbie Mallet

Loss of sea ice is associated with permafrost thaw in Earth’s past, likely in part due to damaging wave action. This side event explores that connection, and looks at projections should temperature rise continue. The main presenters include Dr. Gustaf Hugelius, Co-Director of the Bolin Center of Climate Research/Stockholm University; and Robbie Mallet, a Cryosphere […]

过去二十年,干旱和气温上升导致安第斯沙漠冰川融化量翻倍

Journal of Glaciology, 12 May 2022 Glaciers in the Jáchal river basin of Argentina are rapidly losing ice. One-quarter of the Agua Negra glacier has disappeared within the past sixty years due to unusually high temperatures, exacerbated by a long-term drought. As global temperatures rise, these mountainous desert regions of Argentina experience more intense dry […]

Decline in Arctic Sea Ice Increases Dangerous Waves Along Alaska’s Northern Coast

The Cryosphere, 5 May 2022 Arctic sea ice plays a crucial role in protecting the Alaskan coastline from open ocean waves generated in the Beaufort Sea. Seasonal sea ice forms near the shore during the fall, gradually merging with the thicker multi-year ice to create a layer across the surface that dampens the waves underneath. […]