Core Insights - A recent study published in the journal Nature Communications reveals that methane is leaking from the seabed in Antarctica at an alarming rate, with over 40 new methane seep points discovered in the Ross Sea region [1][2] - The research team, comprising members from various institutions, utilized acoustic sensors and remote vehicles to sample depths ranging from 5 to 240 meters, indicating a fundamental change in methane release mechanisms in the area [1] Group 1: Methane Emissions - Methane, a potent greenhouse gas, has been found to be released from the seabed, potentially exacerbating global warming trends, as it absorbs heat at approximately 80 times the rate of carbon dioxide in the first 20 years after entering the atmosphere [2] - The study highlights that the previously rare occurrence of methane seepage in Antarctica is now becoming more common, raising concerns about its implications for climate change models [2] Group 2: Research Implications - Researchers plan to return to Antarctica for further investigation to assess the relationship between the increased methane seepage and climate change, as well as its impact on marine life [2] - The study also notes a significant increase in atmospheric methane levels over the past decade, with a persistent gap between measured increases and known methane sources, indicating an unknown factor contributing to this rise [2]

Core Insights - The research published in the journal "Nature - Earth Science" reveals that changes in ocean sulfate concentrations can alter methane consumption methods, shedding light on the carbon cycle mechanisms behind the extreme global warming and ocean acidification during the Paleocene-Eocene Thermal Maximum (PETM) 56 million years ago [1] Group 1: Research Findings - Approximately 90% of methane in modern oceans is utilized by microorganisms in sediments under anoxic conditions, producing alkaline substances that mitigate ocean acidification [1] - During the PETM, the sulfate concentration in Arctic seawater was less than one-third of modern levels, leading to a shift where oxygen-consuming bacteria began to "rapidly burn" methane, directly consuming oxygen and releasing carbon dioxide [1] - The reconstructed carbon dioxide levels in the Arctic Ocean during the PETM recovery period were 200-700 ppm higher than the global average, indicating a transition from a carbon sink to a carbon source [1] Group 2: Implications for Carbon Cycle - The reduction in sulfate and dilution of seawater forced methane to decompose through "rapid burning," resulting in significant carbon dioxide production [1] - This fundamentally altered the Arctic's role in the global carbon cycle, transforming it from a carbon sink to a greenhouse gas emission source [1]

Core Insights - The research published in the journal "Nature Geoscience" reveals that changes in ocean sulfate concentrations can alter methane consumption processes, shedding light on the carbon cycle mechanisms behind the extreme global warming and ocean acidification during the Paleocene-Eocene Thermal Maximum (PETM) 56 million years ago [1] Group 1: Methane Consumption and Carbon Cycle - Approximately 90% of methane in modern oceans is utilized by microorganisms in sediments under anoxic conditions, producing alkaline substances that mitigate ocean acidification [1] - During the PETM, the sulfate concentration in Arctic seawater was less than one-third of modern levels, leading to a shift where oxygen-consuming bacteria began to "rapidly burn" methane, directly consuming oxygen and releasing carbon dioxide [1] - The reconstruction of carbon dioxide concentrations based on marine phytoplankton molecular traces indicates that during the PETM recovery period, Arctic ocean CO2 levels were 200-700 ppm higher than the global average, indicating a transition from CO2 absorption to emission [1] Group 2: Role of the Arctic in Global Carbon Cycle - The reduction in seawater salinity and sulfate led to methane being decomposed primarily through "rapid burning," resulting in significant carbon dioxide production [1] - This fundamentally altered the Arctic's role in the global carbon cycle, transforming it from a carbon sink to a source of greenhouse gas emissions [1]

欧盟监测机构：全球经历有记录以来第三热九月 中新网北京10月9日电 欧盟气候监测机构哥白尼气候变化服务局9日称，2025年9月全球气温为有记录以 来同月的第三高，仅比同月最高温低0.27摄氏度。 哥白尼气候变化服务局9日发布的报告显示，2025年9月全球平均地表气温为16.11摄氏度，比2023年和 2024年同月全球平均地表气温分别低0.27摄氏度和0.07摄氏度，但仍较工业化前(1850年至1900年)平均 水平高出1.47摄氏度。 本文为转载内容，授权事宜请联系原著作权人 中新经纬版权所有，未经书面授权，任何单位及个人不得转载、摘编或以其它方式使用。 关注中新经纬微信公众号(微信搜索"中新经纬"或"jwview")，看更多精彩财经资讯。 哥白尼气候变化服务局上个月发布的监测报告显示，2025年8月全球平均地表气温达16.6摄氏度，较工 业化前(1850年至1900年)平均水平高出1.29摄氏度，也达到有记录以来同月的第三高。(完) 来源：中国新闻网 编辑：徐世明 广告等商务合作，请点击这里 报告显示，2025年9月全球海洋表面平均温度为20.72摄氏度，北太平洋大部分海域的海表温度显著高于 同期平均水平 ...

"因为硫酸盐严重不足，犹如燃料短缺，'发电厂'无法正常工作，甲烷只能进入海水中。"项目负责人、 中国科学院广州地球化学研究所研究员张一歌解释，"这时候，另一类喜欢氧气的细菌开始快速'燃 烧'甲烷，就像高温燃烧释放大量废气一样。" 研究团队通过检测一种特殊的分子痕迹，成功复原了5600万年前的甲烷氧化过程。这些分子痕迹就像古 代细菌留下的"身份证"，显示在PETM事件后期，进行"快速燃烧"的甲烷分解细菌活动显著增强并达到 高峰。 5600万年前的极热事件时，北极海洋是如何加剧全球变暖的？9月25日，中国科学院广州地球化学研究 所与国际合作团队在国际学术期刊《自然·地球科学》上刊发论文揭示了此谜底：海洋硫酸盐浓度的微 妙变化，能够改变甲烷的消耗方式，就像一个"化学开关"，引起了全球气候变化。 甲烷是仅次于二氧化碳的第二大温室气体，而大量的甲烷以水合物"可燃冰"的形式储藏在海底。近年研 究发现，绝大部分海底释放的甲烷都会快速溶解在海水中，然后被各种微生物"消化"掉，很少能直接进 入大气。甲烷被"消化"的方式不同，对海洋和气候的影响也截然不同。 现代海洋中，约90%的甲烷会被沉积物中的微生物在无氧条件下利用，即以硫酸 ...

5600万年前的极热事件时，北极海洋是如何加剧全球变暖的？9月25日，中国科学院广州地球化学 研究所与国际合作团队在国际学术期刊《自然·地球科学》上刊发论文揭示了此谜底：海洋硫酸盐浓度 的微妙变化，能够改变甲烷的消耗方式，就像一个"化学开关"，引起了全球气候变化。 "因为硫酸盐严重不足，犹如燃料短缺，'发电厂'无法正常工作，甲烷只能进入海水中。"项目负责 人、中国科学院广州地球化学研究所研究员张一歌解释，"这时候，另一类喜欢氧气的细菌开始快速'燃 烧'甲烷，就像高温燃烧释放大量废气一样。" 研究团队通过检测一种特殊的分子痕迹，成功复原了5600万年前的甲烷氧化过程。这些分子痕迹就 像古代细菌留下的"身份证"，显示在PETM事件后期，进行"快速燃烧"的甲烷分解细菌活动显著增强并 达到高峰。 "通过读取这些'身份证'，我们可以准确知道当时哪类微生物在工作，是慢燃发电还是快速燃烧， 工作强度有多大。"论文第一作者金泛寿博士说。 PETM 时期北极海洋甲烷氧化路径转变概念图。研究团队供图 研究发现，这一时期北极海水中CO2的浓度水平比全球平均值高200-700ppm，说明北极海洋从原本 吸收二氧化碳的"海绵"变成了排 ...

Core Viewpoint - The article discusses the claims made by US President Trump regarding China's wind power usage and the subsequent rebuttals from American media outlets, highlighting China's significant investments and advancements in wind energy [2][4]. Group 1: Trump's Claims - Trump stated that while China manufactures a large number of wind power generation devices, it is reluctant to use wind power domestically [4]. - He reiterated this claim during his speech at the United Nations, suggesting that China primarily exports wind power equipment rather than utilizing it [4]. Group 2: Rebuttals from Media - CNN reported that China has a substantial number of onshore and offshore wind farms, with wind power installed capacity growing at a rate much faster than that of the US. According to data from China's National Energy Administration, the installed wind power capacity in China is expected to reach approximately 520 million kilowatts by 2024, reflecting an 18% year-on-year increase [4]. - The New York Times countered Trump's assertions by stating that China possesses more wind farms and installed capacity than any other country, and is planning to build even more [4]. Group 3: Climate Change Agreements - Trump criticized the Paris Climate Agreement, claiming it was unfair to the US and suggested it required the US to pay $1 trillion [4]. - CNN clarified that the US has never committed to spending or contributing $1 trillion for the Paris Agreement. Under President Biden, the US pledged to contribute $11.4 billion annually to international climate financing, but actual spending has been lower due to insufficient congressional appropriations [4].

研究人员介绍，长期以来，对南极洲气候变化的研究主要依赖以沿海地区为主的有人科考站数据，有关 南极洲腹地的气候变化数据相对较少。他们收集了东南极洲自20世纪90年代以来一直在持续观测的3个 无人气象站的观测数据，创建了一个跨越30年（1993年至2022年）的月平均温度数据集。 新华社北京9月24日电 一项国际研究发现，受来自南印度洋的暖空气影响，东南极洲广阔而冰冷的腹 地较其沿海地区升温更快。这表明世界上最大的冰储库可能比之前认为的更加脆弱。 日本名古屋大学等机构的研究人员近期在英国学术期刊《自然-通讯》上发表论文说，东南极洲腹地较 沿海地区升温更快，原因是南印度洋温度变化引发的暖气流增加，而当前的气候模型未能捕捉到这一变 暖过程，因此对南极洲未来升温的预测可能被低估了。 在南印度洋，海洋锋（即冷暖海水交汇处）形成了明显的温度边界。全球变暖对海水加热不均，更加剧 了这些区域的温差：更强的海洋锋导致更多的风暴活动和大气变化，从而形成"偶极子"模式，即中纬度 地区出现低压系统，而南极洲上空出现高压系统将暖空气向南拉动，并深入大陆深处。 研究人员说，该研究通过完善东南极洲这一观测上"盲点"的数据，证明了东南极洲腹地 ...

人民网斯德哥尔摩9月22日电 （记者殷淼）瑞典塔法拉研究站负责人妮娜·基尔希纳22日表示，受全 球变暖影响，瑞典境内已有八座冰川在2024年彻底消失，成为自有高分辨率卫星影像记录以来首次确认 灭绝的冰川。 目前，瑞典还有约30座冰川面临同样的风险。不过，基尔希纳指出，2025年冬季降雪量充足，夏季 较短且气温相对较低，因此今年预计不会有冰川完全消失。但她警告说，未来仍将出现更多炎热的夏 季，必须做好冰川持续退缩甚至消亡的准备。 根据世界气象组织的数据，全球气温上升的主要原因是工业革命以来煤炭、石油和天然气等化石能 源的大量使用。冰川的消失不仅是气候变暖的直接证据，也为全球生态系统敲响了警钟。 位于瑞典北部最高峰凯布讷山（Kebnekaise）附近的瑞典塔法拉研究站，每年都会研究瑞典冰川的 卫星图像，以追踪其变化。近日，该机构研究人员通过对比年度卫星影像发现，瑞典有八座冰川已彻底 消失，其中包括瑞典最北端位于瓦德维恰卡国家公园的库努约克尔恩冰川（Cunujokeln）。据报道，这 八座冰川中最大的一个，大约相当于六个足球场的面积。 基尔希纳称，瑞典原有277座冰川，其中八座在2024年的异常高温下完全融化。她表 ...

Group 1: National Park Law Implementation - The first National Park Law in China will take effect on January 1, 2026, aiming to protect representative natural ecosystems and promote sustainable use of natural resources [2] - The law establishes a legal framework for a national park system, emphasizing strict protection and integrated management of natural resources [2] - It encourages public participation in conservation efforts and aims to foster awareness of ecological protection among the public [2] Group 2: High-Emission Vehicle Elimination - The Ministry of Ecology and Environment announced that nearly 20 million high-emission vehicles will be eliminated during the 14th Five-Year Plan period [3][4] - Significant reductions in PM2.5 concentrations are targeted, with expected decreases of 18%, 10%, and 20% in key regions by 2024 compared to 2020 levels [3] - The campaign includes comprehensive measures such as coal management and pollution source tracking, achieving notable progress in water and soil protection [4] Group 3: Carbon Market Development - As of September 18, 2025, China's carbon market has seen a cumulative transaction volume of 714 million tons and a total transaction value of approximately 49.96 billion yuan [5][6] - The establishment of a regulatory framework for carbon trading is underway, supporting China's climate change initiatives [5] - The carbon market is recognized as a key mechanism for achieving carbon peak and carbon neutrality goals [6] Group 4: Climate Change and Industry Restructuring - The year 2024 is projected to be the first year to exceed the 1.5°C temperature threshold set by the Paris Agreement, indicating a concerning trend in global warming [7][8] - Experts emphasize the need for intensified emission reduction efforts to meet climate targets and ensure sustainable development [7][8] Group 5: Renewable Energy Consumption in Inner Mongolia - Inner Mongolia has issued a notification to optimize the mechanism for renewable energy consumption, focusing on both mandatory and voluntary consumption [9] - The initiative aims to enhance green electricity consumption and promote the integration of renewable energy with industry [9] Group 6: Low-Carbon Initiatives and Events - The "Low-Carbon China Tour" and Climate Action Week series of events were launched to showcase China's efforts in energy transition and public engagement [10][11] - The events highlight the role of enterprises like Southern Power Grid in promoting green development and their participation in international climate discussions [10][11] Group 7: Clean Energy Expo in Shandong - The 2025 Shandong Clean Energy Industry Expo was held to facilitate innovation and collaboration in the clean energy sector [13][14] - The event aims to strengthen partnerships between enterprises and research institutions to support the region's energy transition [13][14] Group 8: Sustainable Strategy by Yinyu Water Zhongtian - Yinyu Water Zhongtian has set a net-zero target for 2040 and aims to achieve various sustainability goals by 2030 [15][16] - The strategy includes low-carbon construction, climate risk adaptation, and waste management initiatives to promote a circular economy [15][16]