Workflow
气候变化
icon
Search documents
新研究显示气候变化威胁北极碳汇功能
Xin Hua She· 2025-04-30 05:25
Core Insights - Climate change is weakening the carbon sink capacity of Arctic fjords, which is crucial for regulating atmospheric CO2 and global climate [1][2] - The study focuses on the dynamic fjord system of Kongsfjorden in the Svalbard archipelago, revealing significant changes in phytoplankton community structure due to sea ice melt and changes in water properties [1][2] Group 1: Impact of Climate Change - The Arctic fjord has historically been an important carbon storage system, but rising temperatures are threatening its stability and efficiency [1] - Initial increases in sunlight due to reduced sea ice stimulate phytoplankton growth, but this leads to water stratification, limiting nutrient supply from deeper waters [2] Group 2: Ecological Consequences - The increase in phytoplankton biomass is countered by nutrient scarcity, challenging the assumption that higher primary productivity directly translates to increased carbon storage capacity [2] - Accelerated glacier retreat alters the timing and quantity of glacial meltwater entering the sea, causing fluctuations in nutrient supply and destabilizing the entire ecological nutrient system [2] Group 3: Research Significance - The findings serve as an early warning signal for the limits of natural carbon storage under rapid environmental changes in the Arctic [2]
能源金句丨习近平关于国家能源安全重要论述
国家能源局· 2025-04-29 09:04
沂 ZIZ 美于国家能源安全重要论述 (一百零八) 今年以来,我们发起金砖国 家加强供应链合作倡议、贸易投 资与可持续发展倡议,通过了海 关合作与行政互助协定、粮食安 全合作战略, 首次举办应对气候 变化高级别会议。金砖国家应该 充分利用这些新平台,促进产业 合 中华 四十 类目语目标 2007年 2000 点击 国家能源 关注 (来源:中国电力报) 国家能源局 国家能源局微信公众号是国家能源局新闻宣传、信息公开、服务群众的重要平台。 · 公开 政务信息 · 发布 行业动态 ·提供 公众服务 了解更多能源动态,请长按图片识别或扫描右侧二维码,关注国家能源同官方微信公众号。 ...
最新健康研究:气候变化或加重抗微生物药物耐药性全球负担
Huan Qiu Wang Zi Xun· 2025-04-29 03:59
Core Viewpoint - The research indicates that current climate change pathways and the failure to achieve sustainable development strategies may lead to an increased global burden of antimicrobial resistance (AMR) by 2050, with a projected rise of up to 2.4% in AMR rates globally [1][3]. Group 1: Research Findings - In 2021, antimicrobial resistance caused approximately 1.14 million deaths globally, with the most severe impact on middle- and low-income countries. This number is expected to rise to nearly 2 million deaths by 2050 [3]. - The study analyzed 45,502 records of 32 million isolates from six key resistant bacterial pathogens collected from 1999 to 2022 across 101 countries, using predictive models to assess the impact of socioeconomic and climate factors on AMR trends [3][5]. - Under the worst-case climate change scenario, with a global temperature increase of 4-5°C by the end of the century, AMR could increase by 2.4% by 2050 compared to a low-emission scenario. The increase is projected to be 0.9% in high-income countries, 4.1% in middle- and low-income countries, and 3.3% in low-income countries [3][5]. Group 2: Sustainable Development Actions - Sustainable development actions, such as reducing out-of-pocket healthcare expenses, expanding vaccination coverage, increasing health investments, and ensuring universal access to water, sanitation, and hygiene services, could reduce future AMR prevalence by 5.1% compared to baseline levels. This effect is significantly greater than the 2.1% reduction expected from merely decreasing antibiotic use [5]. - The research highlights limitations in establishing causal relationships due to the ecological modeling methods used and the quality of AMR monitoring data. Additionally, certain factors contributing to AMR, such as education, antibiotic use in food production, and animal husbandry practices, were not fully considered and require further investigation [5].
《巴黎协定》达成十周年:国际社会展望中国在气候变化全球治理中的积极角色
人民网-国际频道 原创稿· 2025-04-29 01:57
Core Viewpoint - The "ChangeNow" expo in Paris commemorates the 10th anniversary of the Paris Agreement, highlighting global cooperation in sustainable development and climate action [1][5]. Group 1: Key Participants and Statements - Laurent Fabius, President of the Paris Climate Conference, emphasized China's significant role in achieving the Paris Agreement and expressed hope for continued collaboration with Europe and other nations [2]. - Diana Urge-Vorsatz, Vice-Chair of the IPCC, acknowledged China's advancements in solar power, noting a 90% cost reduction over the past decade, and highlighted China's leadership in various climate action areas [2][3]. - Usama Faqihah, Saudi Arabia's Deputy Minister of Environment, pointed out the strategic partnership between Saudi Arabia and China, particularly in combating desertification and water resource management [3]. - Agnès Pannier-Runacher, French Minister for Energy Transition, recognized China's proactive measures in climate change and its leadership in ecological and energy transitions [3]. Group 2: Expo Overview and Participation - The "ChangeNow" expo gathered over 1,000 exhibitors from more than 140 countries, including Chinese companies focused on environmental materials, and featured over 500 speakers sharing sustainable development technologies and ideas [5]. - The event attracted more than 40,000 attendees and over 1,200 investors, discussing opportunities for global green transition economies [5].
中山大学发表最新Nature Medicine论文
生物世界· 2025-04-29 00:53
编辑丨王多鱼 排版丨水成文 2021 年,细菌的 抗微⽣物药物耐药性 ( AMR ) 导致了全球约 114 万例死亡,其中中低收⼊国家受到的影 响最为严重。这个数字预计到 2050 年会增加⾄近 200 万。 然⽽,⼤部分的 AMR 应对策略都关注过量使⽤抗⽣素问题,很少关注⽓候变化的背景以及社会经济条件。 2025 年 4 ⽉ 28 ⽇,中⼭⼤学公共卫⽣学院 杨廉平 团队在 Nature Medicine 期刊发表了题为: Changing climate and socioeconomic factors contribute to global antimicrobial resistance 的研究论⽂。 该研究指出,当前的⽓候变化路径以及未能实现可持续发展战略,可能会导致到 2050 年抗微⽣物药物耐药 性 ( AMR ) 的全球负担加重。研究团队预计,到 2050 年,全球 AMR 可能会增加最多 2.4% ,并呼吁在 单纯减少抗⽣素使⽤之外,⽴即采取⾏动应对更⼴泛的社会经济和环境因素,从⽽缓解全球 AMR 负担。 分析结果显⽰,在最坏的⽓候变化适应情景下,即本世纪末全球⽓温升⾼ 4 – 5 ℃ ...
中国出台方案应对臭氧层损耗和气候变化
生态环境部大气环境司有关负责人表示,《国家方案》紧紧围绕履约目标要求和国内行业发展现状,坚 持稳中求进的工作总基调,坚持保护臭氧层和应对气候变化协同,分行业、分物质开展消耗臭氧层物质 和氢氟碳化物淘汰和削减行动,推动构建生产、销售、使用、维修、回收、再生利用、销毁和进出口全 生命周期管理体系。 为实现履约目标,《国家方案》从源头管控、过程控制、末端治理和进出口管理四个方面提出了11项具 体任务,例如,在强化管控物质使用管理方面,家电行业自2026年1月1日起,禁止生产以氢氟碳化物为 制冷剂的电冰箱和冰柜产品;在进出口管理方面,除豁免受控用途、原料用途等特殊用途外,不再允许 企业进口含氢氯氟烃和国家已明确淘汰的管控物质。 同时,近日生态环境部联合商务部、海关总署印发了修订后的《消耗臭氧层物质进出口管理办法》,进 一步优化了消耗臭氧层物质进出口管理,加强跨部门合作,防范和打击非法贸易,积极履行公约义务, 展现大国担当。 (责编:赵欣悦、袁勃) 近日,生态环境部联合国家发展改革委、工业和信息化部、商务部、海关总署印发了《中国履行〈关于 消耗臭氧层物质的蒙特利尔议定书〉国家方案(2025—2030年)》(以下简称《国 ...
ESG公募基金周榜81期 | 上榜基金全部收涨,泛ESG主题主动型领涨
Mei Ri Jing Ji Xin Wen· 2025-04-27 09:08
Core Insights - The latest ESG public fund weekly ranking shows a recovery in performance, with all listed funds experiencing gains during the observation period from April 21 to April 25 [1] - There is a significant performance divergence between ESG-themed and broad ESG-themed products, with broad ESG active funds leading the top 10 rankings [1] Fund Performance Summary - Broad ESG active funds achieved an average return of 8.76%, while broad ESG index funds followed with an average return of 3.97% [1] - ESG-themed active funds had an average return of 3.06%, which is less than half of the broad ESG active funds, and ESG-themed index funds had an average return of 0.76%, less than a quarter of the broad ESG index funds [1] Investment Focus - Broad ESG active funds primarily focus on low-carbon investments, including carbon neutrality, new energy vehicles, new energy materials, and climate change [1] - In contrast, the industry concentration for broad ESG index funds is high, with all funds related to new energy vehicle batteries [1] Historical Performance - The historical performance of the new energy vehicle battery sector has shown significant volatility, indicating the need for cautious timing in investments [1]
古特雷斯:中国方案对全球气候行动具有重要意义
Xin Hua She· 2025-04-24 13:13
Core Points - The UN Secretary-General António Guterres praised President Xi Jinping's latest climate proposal during the climate and just transition leaders' video summit, highlighting its "extremely important significance" for global climate action [1] - The upcoming COP30 will take place in November in Belém, Brazil, aiming to strengthen global climate action under the Paris Agreement framework [1] - Guterres emphasized the strong signal of international unity in addressing climate change conveyed by the summit, with multiple leaders committing to submit ambitious new climate action plans [2] - Xi Jinping's speech included key initiatives such as upholding multilateralism, deepening international cooperation, promoting just transitions, and enhancing pragmatic actions, with China set to announce its 2035 national contribution target covering all greenhouse gases before the UN climate conference [1] - Guterres called for accelerated submission of new national climate action plans and increased support for developing countries [2] - A high-level UN meeting will be held in September to assess the implementation of climate action plans and financing [3]
能源金句丨习近平关于国家能源安全重要论述
国家能源局· 2025-04-24 06:46
(来源:中国电力报) 《推动实现更加强劲、绿色、健康的 全球发展》(2021年10月31日),习近平 《论坚持人与自然和谐共生》,中央文献 出版社2022年版,第299页 FIII AZ 习 近 关于国家能源安全重要论述 (二百零四) 气候变化和能源问题是当前 突出的全球性挑战,事关国际社 会共同利益,也关系地球未来。 ...
美国财长贝森特:国际货币基金组织将过多时间和资源投入气候变化、性别和社会问题的工作,挤占了宏观经济工作的空间。
news flash· 2025-04-23 14:03
美国财长贝森特:国际货币基金组织将过多时间和资源投入气候变化、性别和社会问题的工作,挤占了 宏观经济工作的空间。 ...