北极“最后一片冰区”可能比先前预测的更早消失

通信地球与环境,2025年1月23日 北极的“最后冰区”(LIA)——该区域位于格陵兰岛北部和加拿大北极群岛,长期以来被认为是常年海冰能够存活时间最长的地区,为依赖冰的物种提供了一个潜在的避难所——可能会在中央北极[…]后不到十年内消失。

本周COP29视频:消失的海冰——它对我们的海洋和生态系统的意义

海冰是北极和南极地区独特、基础且脆弱的栖息地。气温升高导致海冰厚度和范围减小,破坏了脆弱的海洋环境平衡,并带来全球性后果。科学和政策专家讨论了北极和南极海冰的当前和未来变化、它们对极地海洋生态系统的影响以及目前的准备状况 […]

本周视频:了解末次间冰期期间的南极洲西部和海平面上升

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 […]

Video of the Week: How the Term “Tipping Points” May Distract from Climate Action

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. […]

Launch of International Year of Glaciers’ Preservation (IYGP) 2025

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 […]

40 Years of Pervasive Glacier Retreat Across Svalbard

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, […]

Svalbard Rapidly Greening as Temperatures Rise

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 […]

2024 Global Average Temperature was 1.6°C above Pre-industrial

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 […]

Sea-level Rise and Permafrost Thaw Substantially Increases Arctic Coastal Erosion Rates

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 […]