全球气候变化

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北欧国家加紧应对罕见热浪
Ren Min Ri Bao· 2025-08-11 21:42
芬兰的情况同样严峻。芬兰气象研究所的数据显示,该国7月共有22天日最高气温突破30摄氏度,热浪 持续时间比1961年的最长纪录延长了50%。以"圣诞老人的故乡"著称的芬兰北部城市罗瓦涅米的日最高 气温也一度达到31摄氏度。芬兰气象学家米卡·兰塔宁在社交媒体上评论这次热浪"前所未有"。 在瑞典,北部哈帕兰达地区连续14天最高气温超过25摄氏度,约克莫克小镇的高温持续天数达15天,均 打破当地百年气象纪录。瑞典气象机构表示,热浪的影响范围已扩展至整个北欧,表明气候变化正以惊 人速度重塑北极圈的气候模式。 气象专家认为,环北极地区的罕见热浪与全球气候变化密切相关。芬兰气象研究所专家海基·图奥门维 尔塔表示,北极变暖速度已是全球平均值的两倍以上,这使得类似极端天气事件变得更为频繁、持久和 严重。挪威气象研究所认为,此轮热浪的形成主要受到两个关键因素驱动:一是挪威北部沿海异常温暖 的海水为大气提供了大量热量;二是长时间滞留的大气高压系统抑制了降水和云层的形成,导致热量持 续积聚。 相关研究显示,北极地区冰雪的快速融化正在削弱地球表面的热量反射能力,进一步加剧区域乃至全球 的变暖趋势,形成气候变迁的"恶性循环"。科学家警 ...
明明太阳已经落山 为何体感更热?
Xin Hua Wang· 2025-07-30 03:40
Group 1 - The phenomenon of "nighttime high temperatures" is caused by cloud cover that traps heat, preventing nighttime cooling [1][3] - Human activities, such as urbanization and transportation, contribute to higher nighttime temperatures due to heat retention in concrete and asphalt [3][4] - Global climate change factors, including increased greenhouse gases and water vapor, exacerbate nighttime warming [3][4] Group 2 - Nighttime high temperatures pose health risks, particularly for vulnerable populations such as the elderly, who have a reduced ability to regulate body temperature [4][6] - Recommendations for coping with nighttime high temperatures include improving air circulation indoors, staying hydrated, and being cautious about outdoor activities [4][6] - Special attention is needed for elderly individuals with heart conditions, as they may require careful management of fluid intake to avoid exacerbating health issues [6]
史上最热夏天,东北人也撑不住去抢空调了
后浪研究所· 2025-07-23 07:33
Core Viewpoint - The extreme heat in Northeast China has led to a surge in air conditioner demand, highlighting a shift in consumer behavior as air conditioning becomes a necessity rather than a luxury in the region [1][2][3]. Group 1: Weather Conditions - Long-term climate patterns in Northeast China have changed, with temperatures reaching unprecedented levels, such as 36 degrees Celsius in Changchun, which is significantly higher than historical averages [1][5][19]. - The summer of 2023 has been marked by extreme heat across the country, with 147 national meteorological stations reporting record high temperatures [3][16]. Group 2: Consumer Behavior and Market Response - The demand for air conditioners has skyrocketed, leading to shortages in both online and offline retail channels, particularly for budget models priced under 2000 yuan [7][8][11]. - Retail sales of air conditioners in Northeast provinces have seen dramatic increases, with sales in Jilin up 355%, Heilongjiang up 333%, and Liaoning up 518% year-on-year [11][14]. - Installation services for air conditioners are overwhelmed, with consumers facing long wait times, sometimes up to 10 days, for installation due to high demand [13][14]. Group 3: Brand and Industry Actions - Major brands like Xiaomi and Midea are responding to the surge in demand by dispatching additional installation teams to the Northeast to alleviate the backlog [14]. - The air conditioning market in Northeast China is experiencing a significant transformation, as consumers who previously viewed air conditioning as non-essential are now prioritizing it due to extreme weather conditions [1][19].
第十二次中欧能源对话联合简报
国家能源局· 2025-07-15 11:37
Core Viewpoint - The overarching objective of China-EU energy cooperation is to expedite the global transition to clean energy while ensuring energy security to address global climate change challenges [6][7]. Group 1 - The 12th meeting of the China-EU Energy Dialogue was held on July 14, 2025, in Beijing, co-hosted by Wang Hongzhi and Dan Jørgensen [5][6]. - Both sides agreed to sustain cooperation on various aspects of the clean energy transition, including accelerating the transition, ensuring energy security, enabling benefits of the transition, and energy market design [6][7]. - The EU-China Energy Cooperation Platform (ECECP) and the China-Europe Energy Innovation Cooperation Platform (CEEI) participated in the dialogue meeting [2][7].
第四期全球名校“Z世代”领袖连线活动举办 中外青年共话AI技术应用
Huan Qiu Wang Zi Xun· 2025-07-02 03:25
Group 1: Event Overview - The fourth global elite "Generation Z" leaders online event was successfully held, gathering over 40 youth representatives from 15 renowned universities, including Shanghai Jiao Tong University and the University of California, Berkeley, to discuss "AI technology and future applications" [1][4] Group 2: AI Technology Insights - Yang Jian, a former core researcher from Alibaba's Tongyi team, highlighted the breakthrough in code intelligence technology, emphasizing that AI models have democratized programming, allowing code generation through natural language descriptions [4] - Echo Zhang from University College London stated that the core value of AIGC (AI-generated content) lies in "co-creation between humans and algorithms," illustrating its impact on personalized education and medical diagnostics with examples like Google DeepMind's "MedGemma" model [5] - Erum Yasmeen from Shanghai Jiao Tong University referenced a World Economic Forum statistic predicting that 85 million jobs will be displaced by AI, while new jobs will be created, stressing the importance of adapting faster than technology [9][10] Group 3: Educational Technology Evolution - Hua Xiaowen from Shanghai Jiao Tong University reviewed the evolution of educational technology, advocating that technology should enhance learners' individual expression and multiple intelligences rather than replace teachers [7] - The discussion included the introduction of AI courses in countries like Finland, encouraging students to engage with global issues such as sustainable development goals [7] Group 4: Data Analysis and AI Development - Duan Yuqing from the University of Auckland shared a thought-provoking perspective that "dirty data" can sometimes be more valuable than "clean data" for training AI models, particularly in financial fraud detection [12]
2025年气温又“爆表”,中国气象局答21记者问
2 1 Shi Ji Jing Ji Bao Dao· 2025-06-27 09:10
Group 1 - The core viewpoint indicates that 2025 is likely to be one of the warmest years on record, with a high probability of exceeding the global average temperature record set in 2024 [1][2] - The World Meteorological Organization (WMO) predicts that there is an 80% chance that at least one year between 2025 and 2029 will surpass the 2024 temperature record [1] - The average global temperature from January to May 2025 is reported to be the second highest since 1850, only slightly lower than the same period in 2024 [1] Group 2 - In June 2023, the national average temperature in China was 21.1°C, which is 0.9°C higher than the historical average, tying with 2022 for the highest June temperature since 1961 [2] - A total of 102 national meteorological stations in China recorded daily maximum temperatures exceeding historical June records, with 17 stations reaching or exceeding 40°C [2] - Two significant heatwaves affected China in June, with temperatures exceeding 40°C in several provinces [2] Group 3 - National precipitation in June showed an "east more, west less" distribution, with an average of 85.8 mm, which is 3.4% higher than the historical average [3] - Three strong regional rainstorm events occurred in southern China, with one event classified as extremely strong, leading to severe flooding in multiple areas [3] - The "China Climate Change Blue Book (2025)" highlights the ongoing warming trend in the climate system, with significant acceleration in ocean warming, sea level rise, and glacier melting since the 1990s [3] Group 4 - The National Climate Center will continue to enhance global climate system monitoring and provide timely and accurate information to support responses to global climate change [4]
研究报告:全球控温1.5摄氏度目标不易实现
Bei Jing Ri Bao Ke Hu Duan· 2025-06-19 09:25
Core Insights - A study involving top global scientists predicts that human activities will lead to a 1.5°C increase in global average temperatures by early 2028, making it difficult to achieve the temperature control goals set by the Paris Agreement [1][3] - The report published in the journal "Earth System Science Data" indicates that at the current rate of 42 billion tons of CO2 emissions per year, there is a 50% chance of reaching the 1.5°C threshold by February 2028 [1][3] - The speed of greenhouse gas emissions is accelerating faster than previously predicted, raising concerns about the worsening climate situation [3] Emission and Temperature Projections - According to the Paris Agreement, parties aim to limit the increase in global average temperature to well below 2°C above pre-industrial levels, with efforts to limit the increase to 1.5°C [3] - The imbalance between heat absorption and release on Earth is intensifying, which is alarming according to the report's lead author [3] Implications of Temperature Increase - Experts warn that surpassing the 1.5°C threshold will lead to more frequent and severe extreme weather events [5] - While crossing the 1.5°C mark does not signify an apocalyptic scenario, every 0.1°C increase in average temperature will result in worse impacts [5]
「经济发展」白重恩:如何切实提升民营企业信心
Sou Hu Cai Jing· 2025-06-18 14:38
Core Viewpoint - The importance of boosting confidence and improving expectations for the development of the private economy in China is emphasized, as it is essential for achieving Chinese-style modernization [3][5]. Group 1: Economic Growth Potential - China's economic growth potential remains significant, even if the growth rate is expected to decline to around 4% or 5%, which is still faster than developed countries [3][5]. - The potential for growth is supported by factors such as the hardworking nature of the Chinese people, strong innovation spirit, and a large market that provides advantages in the digital and intelligent era [4][5]. Group 2: Role of Private Economy - The private economy is deemed crucial for achieving Chinese-style modernization, and there is a need for confidence in its development [5][9]. - The government is encouraged to institutionalize and legalize the protection and encouragement of the private economy to ensure equal competition among different types of enterprises [10]. Group 3: Enhancing Scientific Literacy - Improving the scientific literacy of the population is essential to enhance the confidence of private entrepreneurs and the general public [6][9]. - The lack of scientific spirit among the populace can lead to the spread of rumors and misinformation, which negatively impacts confidence [7][8]. Group 4: Decision-Making Mechanisms - Establishing clear decision-making mechanisms for the private economy is necessary to address issues and enhance confidence [10][11]. - The need for a coordinating body to address the challenges faced by the private sector is highlighted, as current mechanisms may not adequately support private enterprises [10][11]. Group 5: Digital Intelligence Development - The rapid development of digital intelligence technology, such as chatGPT, presents both opportunities and challenges for the economy [12]. - The relationship between scale, development, and regulation in the digital economy needs to be carefully managed to maintain confidence in the sector [12].
攀上地球之巅 探寻自然奥秘
Zhong Guo Zi Ran Zi Yuan Bao· 2025-06-06 11:49
Core Insights - The article discusses the geological and ecological significance of Mount Everest, emphasizing its height and the ongoing geological processes that shape it [1][2][3]. Measurement Techniques - The height of Mount Everest has been measured multiple times, with the latest measurement in 2020 confirming its height at 8848.86 meters using advanced technologies like GNSS and radar [2][3]. - The continuous monitoring of Everest's height is crucial for understanding geological changes and providing long-term data for scientific research [2][3]. Geological Movement - The 2020 measurement indicates that Mount Everest moves approximately 3 centimeters northeast annually and rises about 4 millimeters vertically, showing that the mountain-building process is still ongoing [3]. - The data collected from GNSS monitoring networks helps analyze the impact of seismic events, such as the 2015 Nepal earthquake, on the region's geological stability [3]. Climate Change and Glaciers - The glaciers in the Tibetan Plateau are vital freshwater resources and are sensitive indicators of climate change, prompting scientific investigations into their dynamics [4][5]. - The 2020 measurement utilized remote sensing technologies to study glacier flow and changes over the past 30 years, providing insights into climate history [4]. Comprehensive Scientific Research - The data from Everest measurements contribute to understanding ecological changes and resource monitoring in the region, serving as a natural laboratory for earth sciences [6][7]. - Over the past decades, extensive scientific expeditions have shifted focus from basic data collection to analyzing environmental changes and their implications for global climate [6][7]. Biodiversity and Human Impact - Recent studies have identified over 3000 new species in the Tibetan Plateau, indicating a rich biodiversity that is adapting to changing environmental conditions [7]. - The research also suggests that human activity in the region dates back at least 190,000 years, providing new insights into human adaptation to high-altitude environments [7].
王毅:团结应对全球气候变化
Xin Lang Cai Jing· 2025-05-28 14:54
Core Viewpoint - China expresses its commitment to global climate governance and support for Pacific island nations in addressing climate change challenges [1] Group 1: Climate Change Initiatives - China emphasizes the importance of unity in combating global climate change and expresses regret over certain major countries' withdrawal from the Paris Agreement [1] - The Chinese government has provided significant assistance to Pacific island nations, including energy-efficient air conditioners and solar photovoltaic systems, to enhance their capacity to respond to climate change [1] - A new initiative will be announced to deepen cooperation with Pacific island nations on climate change, including a commitment to invest new funds and implement 100 "small but beautiful" climate change projects over the next three years [1] Group 2: Disaster Resilience and Marine Protection - China supports Pacific island nations in protecting marine ecosystems and addressing issues such as rising sea levels, coastal erosion, and marine disasters [1] - The Chinese government is willing to share early warning technologies to assist island nations in disaster prevention and reduction [1] - China will continue to utilize cooperation mechanisms such as the China-Pacific Island Countries Climate Change Center and disaster reduction centers to contribute to the efforts of island nations in combating climate change [1]