英国《自然》杂志17日刊载的一份研究报告说，氢排放会间接加剧全球变暖，1990年至2020年累积的氢排放为工业化后的全球平均气温上升"贡 献"了0.02摄氏度。研究人员认为，应关注氢排放的影响，确保氢作为清洁能源发挥作用。 研究人员指出，氢排放对全球变暖产生的间接影响会减少用氢能源替代化石能源带来的益处，"我们需要对全球氢循环以及它与全球变暖之间的关 联进行更深入了解"。 国际组织"全球碳计划"开展的这项研究发现，氢气间接加剧全球变暖的主要原因是它会消耗大气中能够分解温室气体甲烷的天然净化物质。 这是2024年3月24日拍摄的新西兰南岛西海岸福克斯冰川一隅。新华社发（杨柳摄） 研究人员说，大气中的氢气越多，这类天然净化物质就越少，从而延长甲烷在大气中的留存时间，加剧升温。此外，氢气与这些天然净化物质的 反应还会生成臭氧、水蒸气等温室气体，进一步助推全球变暖。 研究人员发现，1990年至2020年间，全球氢气排放量的增加主要源于人类活动。氢排放的主要来源是甲烷等化合物的分解，而甲烷在大气中的快 速增加源于化石燃料的使用、农业生产以及垃圾填埋等活动。 据研究人员估算，自1990年以来，甲烷等化合物分解产生的氢气年 ...

（央视财经《正点财经》）英国《自然》杂志17日刊载的一份研究报告说，氢排放会间接加剧全球变暖。研究人员认为，应关注氢排放的影响，确保氢作为 清洁能源发挥作用。 研究人员发现，1990年至2020年间，全球氢气排放量的增加主要源于人类活动。氢排放的主要来源是甲烷等化合物的分解，而甲烷在大气中的快速增加源于 化石燃料的使用、农业生产以及垃圾填埋等活动。研究人员说，氢排放与甲烷的增加形成恶性循环：甲烷分解产生氢气，更多甲烷意味着更多氢气，而更多 氢气又会延长甲烷在大气中的存留时间，带来更多危害。研究人员指出，氢排放对全球变暖产生的间接影响会减少用氢能源替代化石能源带来的益处。 转载请注明央视财经 编辑：潘煦 国际组织"全球碳计划"开展的这项最新研究发现，1990年至2020年累积的氢排放为工业化后的全球平均气温上升"贡献"了0.02℃，氢气间接加剧全球变暖的 主要原因是它会消耗大气中能够分解温室气体甲烷的天然净化物质。研究人员说，大气中的氢气越多，这类天然净化物质就越少，从而延长甲烷在大气中的 留存时间，加剧升温。此外，氢气与这些天然净化物质的反应还会生成臭氧、水蒸气等温室气体，进一步助推全球变暖。 ...

世界气象组织今年10月发布的全球温室气体公报显示，2024年二氧化碳、甲烷和氧化亚氮三种主要温室 气体的全球近地面浓度继续升高。其中，二氧化碳平均浓度为423.9ppm，是自1957年开展现代观测以 来的最大年增量。 2024年全球增幅创新高的原因，主要是全球化石燃料燃烧产生的人为二氧化碳排放持续增加，异常高温 下陆地和海洋生态系统碳汇能力减弱，以及2024年全球野火多发导致二氧化碳排放增加。 曾沁表示，未来，中国气象局将进一步优化温室气体观测站网布局，加强高精度大气温室气体监测与动 态分析，提升二氧化碳收支核算能力，深化温室气体对天气气候的影响与反馈作用研究，积极为我国应 对气候变化提供有力的科技支撑。（记者刘诗平） 公报显示，2024年，瓦里关站二氧化碳年均浓度上升至424.9ppm（百万分之424.9），比2023年升高 3.5ppm。这个增量与全球平均水平持平。 2024年，我国区域大气本底站观测到的二氧化碳和甲烷年均浓度与2023年相比呈上升趋势。其中，上甸 子、龙凤山和香格里拉站观测的二氧化碳年均浓度增幅均小于全球平均水平。 新华社北京12月3日电 中国气象局12月3日发布《中国温室气体公报（20 ...

世界气象组织今年10月发布的全球温室气体公报显示，2024年二氧化碳、甲烷和氧化亚氮三种主要温室 气体的全球近地面浓度继续升高。其中，二氧化碳平均浓度为423.9ppm，是自1957年开展现代观测以 来的最大年增量。 2024年全球增幅创新高的原因，主要是全球化石燃料燃烧产生的人为二氧化碳排放持续增加，异常高温 下陆地和海洋生态系统碳汇能力减弱，以及2024年全球野火多发导致二氧化碳排放增加。 曾沁表示，未来，中国气象局将进一步优化温室气体观测站网布局，加强高精度大气温室气体监测与动 态分析，提升二氧化碳收支核算能力，深化温室气体对天气气候的影响与反馈作用研究，积极为我国应 对气候变化提供有力的科技支撑。 新华财经北京12月3日电（记者刘诗平）中国气象局12月3日发布《中国温室气体公报（2024年）》。公 报显示，2024年我国人为碳排放总量相比2023年增加约0.6％，较2023年的增幅显著收窄，也低于全球 0.8％的增速，表明我国积极履行碳减排承诺取得实际成效。 中国气象局科技司司长曾沁说，这是我国连续第14年发布中国的温室气体监测情况。目前，我国已建成 由1个纳入世界气象组织（WMO）全球大气观测计划的 ...

世界气象组织今年10月发布的全球温室气体公报显示，2024年二氧化碳、甲烷和氧化亚氮三种主要 温室气体的全球近地面浓度继续升高。其中，二氧化碳平均浓度为423.9ppm，是自1957年开展现代观 测以来的最大年增量。 新华社北京12月3日电（记者刘诗平）中国气象局12月3日发布《中国温室气体公报（2024年）》。 公报显示，2024年我国人为碳排放总量相比2023年增加约0.6％，较2023年的增幅显著收窄，也低于全 球0.8％的增速，表明我国积极履行碳减排承诺取得实际成效。 2024年全球增幅创新高的原因，主要是全球化石燃料燃烧产生的人为二氧化碳排放持续增加，异常 高温下陆地和海洋生态系统碳汇能力减弱，以及2024年全球野火多发导致二氧化碳排放增加。 公报显示，2024年，瓦里关站二氧化碳年均浓度上升至424.9ppm（百万分之424.9），比2023年升 高3.5ppm。这个增量与全球平均水平持平。 2024年，我国区域大气本底站观测到的二氧化碳和甲烷年均浓度与2023年相比呈上升趋势。其中， 上甸子、龙凤山和香格里拉站观测的二氧化碳年均浓度增幅均小于全球平均水平。 中国气象局科技司司长曾沁说，这是我国连 ...

三种主要温室气体的全球近地面浓度继续升高。 最新评估数据显示，2024年我国人为碳排放总量相比2023年增加约0.6%，较2023年的增幅显著收窄， 也低于全球0.8%的增速，表明我国积极履行碳减排承诺已取得实际成效。 中国气象局今天（12月3日）召开新闻发布会，发布《中国温室气体公报（2024年）》，这是该局连续 第14年发布中国的温室气体监测情况。中国气象局科技司司长曾沁通报了上述数据。 曾沁介绍，中国温室气体公报是中国气象局服务于应对气候变化及我国"双碳"战略的重要决策服务产品 之一，与世界气象组织（WMO）发布的《WMO全球温室气体公报》相呼应。 世界气象组织自2006年开始发布全球温室气体公报，对全球近地面大气中温室气体含量和变化进行分 析。今年10月16日，世界气象组织发布第21期全球温室气体公报。 曾沁介绍，自2012年开始，中国气象局基于大气本底站观测，开展区域尺度大气温室气体浓度变化评估 工作。2024年，我国区域大气本底站观测到的二氧化碳和甲烷年均浓度与2023年相比呈上升趋势。其 中，上甸子、龙凤山和香格里拉站观测的二氧化碳年均浓度增幅都小于全球平均水平。 公报显示，2024年三种主要温 ...

Core Insights - The World Meteorological Organization reports that concentrations of greenhouse gases such as carbon dioxide, methane, and nitrous oxide reached historic highs in 2024, indicating a significant environmental concern [1] Group 1: Greenhouse Gases Overview - Greenhouse gases act like a "thermal blanket" for the Earth, absorbing and re-radiating heat, which is essential for maintaining suitable temperatures for life [1] - Common greenhouse gases include carbon dioxide, methane, nitrous oxide, and fluorinated gases [1] Group 2: Measurement and Impact of Greenhouse Gas Concentration - The concentration of greenhouse gases is measured in parts per million (ppm) for carbon dioxide and parts per billion (ppb) for methane and nitrous oxide, indicating very low levels in the atmosphere [3] - An increase in greenhouse gas concentration enhances the greenhouse effect, leading to global warming and extreme weather events, which can significantly impact agriculture, energy, and health sectors [8][10] Group 3: Causes of Increased Greenhouse Gas Concentration - Human activities such as fossil fuel combustion, agricultural practices, and land-use changes are the primary drivers of increased greenhouse gas emissions, surpassing natural absorption capabilities [7] - The decline in the carbon absorption capacity of ecosystems, such as oceans and land, contributes to the rising concentrations of greenhouse gases [4][5] Group 4: Effects on Climate and Agriculture - The rise in greenhouse gas concentrations is linked to more frequent and intense extreme weather events, such as heatwaves and droughts, which pose challenges to agricultural production [9][10] - Changes in climate are causing agricultural zones to shift northward and westward, affecting crop yields and introducing new health risks due to the spread of tropical diseases [10] Group 5: Mitigation and International Cooperation - Addressing climate change requires improved monitoring and early warning systems for natural disasters, as well as integrating climate risk considerations into agriculture, urban planning, and public health [11] - Global cooperation is essential for effective climate governance, with a focus on low-carbon initiatives and support for developing countries in adapting to climate change [12]

Core Insights - An international study led by New Zealand's Earth Science Organization has found a significant increase in methane seep points in the Antarctic region, raising concerns about the relationship between this phenomenon and climate change [1] - The study indicates that these seep points are mostly newly formed, suggesting a major change in methane emission patterns around New Zealand's continental shelf [1] - Methane is a potent greenhouse gas, and scientists are investigating its sources and the connection to escalating global warming [1] Summary by Sections Methane Seep Points - Methane seepage refers to the release of methane and other chemicals from beneath the seabed into the water, with some forming bubbles that reach the surface [1] - The first seep point was discovered in Antarctica in 2012, and the number has been continuously increasing, with similar phenomena observed in the Arctic [1] - The research team recorded dozens of new methane seep points in the shallow waters of the Ross Sea, Antarctica [1] Research Methodology - The research utilized remotely operated vehicles and deployed underwater divers to explore methane seep points at various depths in the Ross Sea [1] - Last year, the team unexpectedly found dozens of new seep points at Cape Evans on Ross Island [1] Future Implications - The lead researcher, Sara Seabrook, expressed excitement with each new discovery, but also anxiety over the potential rapid release of more methane into the atmosphere, which many climate change prediction studies have not yet accounted for [1] - The implications of this trend for the nearshore Antarctic environment in the next 5 to 10 years are concerning [2]

Core Insights - The latest report from the American Meteorological Society, titled "Annual Climate Status Report," warns that multiple climate indicators are set to break records in 2024, including greenhouse gas concentrations, land and ocean temperatures, sea level heights, and ocean heat content [1][2] Group 1: Greenhouse Gas Concentrations - The concentration of carbon dioxide in the atmosphere has reached 422.8±0.1 parts per million (ppm), a 52% increase from the pre-industrial level of 278 ppm [1] Group 2: Temperature Records - Global surface temperatures have broken records for two consecutive years, exceeding the 1991-2020 average by 0.63℃ to 0.72℃ [2] - The period from 2015 to 2024 is confirmed as the hottest decade on record, according to six authoritative datasets [2] Group 3: Ocean Temperature and Heat Waves - Influenced by the El Niño phenomenon, global sea surface temperatures are expected to reach new highs in 2024, with an increase of 0.06℃ compared to the record set in 2023 [2] - Approximately 91% of ocean areas are experiencing heat waves, while only 26% are facing cold waves [2] Group 4: Water Cycle and Extreme Weather - The amount of water vapor in the atmosphere has reached a historical high, with over 20% of global regions experiencing extreme vapor values, significantly higher than the 10% recorded in 2023 [2] Group 5: Ocean Heat Content and Sea Level Rise - Global ocean heat content has reached unprecedented levels, with measurements taken from the surface down to 2000 meters deep continuing to increase [2] - The global average sea level has set new records for 13 consecutive years, rising approximately 105.8 millimeters since the beginning of satellite monitoring in 1993 [2] Group 6: Glacier Melting - In 2024, 58 benchmark glaciers worldwide have reported mass loss for two consecutive years, marking the largest average loss in 55 years [2] - Venezuela has become the first Andean country to completely lose its glaciers, while the Conejeras Glacier in Colombia has been officially declared "dead" [2]

Core Points - The "heat dome" phenomenon is currently affecting millions in the Northern Hemisphere, particularly in Europe and the United States, leading to dangerously high temperatures [1][2] - Climate scientists report that the intensity and duration of such extreme atmospheric events have nearly doubled since the 1950s [1] - The UK experienced its hottest June on record, with temperatures in London expected to reach 35°C, while parts of the US saw temperatures exceed 40°C [1][4] Group 1 - The "heat dome" is characterized by high-pressure systems that trap hot air in a region, preventing cooler air from entering, resulting in heat waves [1][2] - In Europe, countries like Greece, Spain, and France are facing unprecedented heat, with temperatures deviating from seasonal averages by 10°C to 14°C [2] - The phenomenon is linked to human-induced climate change, which has increased greenhouse gas levels, making it harder for the Earth to release excess heat [2][10] Group 2 - Research indicates that the frequency of atmospheric blocking events, which lead to heat waves, wildfires, and floods, has increased significantly over the past 70 years [8] - The current "double heat dome" phenomenon is associated with persistent fluctuations in jet streams, which are not fully captured by existing climate models [10] - Experts warn that typical summer weather patterns are becoming a thing of the past, with extreme temperature and precipitation events becoming the norm [10]