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特稿|北半球多国遭遇高温天气 全球变暖影响日趋凸显
Xin Hua She· 2025-06-30 06:13
Core Viewpoint - The article highlights the increasing frequency and intensity of extreme heat events due to global warming, urging governments to enhance heatwave preparedness and long-term strategies to reduce greenhouse gas emissions [1][6][7]. Group 1: Extreme Heat Events - Many countries in the Northern Hemisphere are experiencing extreme heat early in the summer, with Italy issuing red alerts for major cities due to high temperatures [2]. - In Germany, forecasts predict up to 14 days of temperatures exceeding 30 degrees Celsius, raising concerns about forest fire risks [2]. - The U.S. has recorded record high temperatures in nearly 40 cities, affecting approximately 160 million people across at least 29 states [3]. Group 2: Health Impacts - High temperatures can lead to heat exhaustion and heatstroke, with significant health risks for vulnerable populations, including the elderly and those with pre-existing conditions [4][5]. - In France, over 3,700 deaths were attributed to summer heat in 2024, with a similar estimate of around 3,000 deaths in Germany due to heat-related causes [4]. Group 3: Mitigation Strategies - Experts recommend various measures to mitigate the effects of heatwaves, such as increasing urban greenery and providing shaded areas [4]. - Public health strategies and early warning systems are crucial for protecting vulnerable groups from extreme heat [4][5]. Group 4: Climate Change and Weather Patterns - The phenomenon known as the "heat dome" is linked to extreme heat events, exacerbated by global warming, which causes high-pressure systems to trap warm air near the surface [6]. - Climate change is leading to more unstable weather patterns, with extreme weather events becoming more common, including both heatwaves and cold snaps [6]. Group 5: Global Temperature Trends - The China Meteorological Administration's report indicates that 2024 is projected to be the hottest year on record since 1850, driven by human activities and natural climate variability [7].
北半球多国遭遇高温天气 专家称全球变暖放大热穹顶效应
news flash· 2025-06-30 05:42
Core Viewpoint - The article highlights the increasing frequency and intensity of extreme heat events in the Northern Hemisphere due to global warming, urging governments to enhance heatwave preparedness and long-term strategies to reduce greenhouse gas emissions [1]. Group 1: Extreme Weather Events - Since June, many countries in the Northern Hemisphere have experienced high temperatures, prompting health and meteorological agencies to advise the public on heat safety [1]. - Experts indicate that with accelerated global warming, extreme weather events are expected to become more common and severe, with summer heatwaves arriving earlier [1]. Group 2: Government Response - Governments are encouraged to improve early warning systems and assist citizens in coping with high temperatures [1]. - In the long term, there is a call for proactive measures to reduce greenhouse gas emissions to mitigate global warming [1].
希腊雅典附近野火得到控制 热浪仍将继续
Xin Hua She· 2025-06-28 11:25
当局下达的疏散令覆盖5个地区,警方已帮助40人撤离。连接雅典与旅游胜地苏尼翁的一条海滨公 路部分路段双向关闭。 这场野火起火点据信位于有人居住的区域,在强风助推下蔓延。消防部门27日说,火势已经得到控 制。当地官员季米特里斯·卢卡斯告诉媒体记者,野火导致多处房屋受损,具体损失尚待统计。 新华社北京6月28日电 希腊首都雅典附近区域26日燃起野火,当地政府紧急疏散人员并关闭一条海 岸公路部分路段。截至27日,这场野火已得到控制。 希腊近日遭热浪侵袭,气温接近40摄氏度。消防部门发言人瓦西利斯·瓦斯拉科扬尼斯在26日举行 的记者会上说,野火在雅典以南一片海滨地区蔓延,12架消防飞机投入灭火,另有12架直升机为130名 消防员提供空中支持,海岸警卫队也出动一艘消防船协助灭火。 天气预报显示,本轮热浪预计持续至周末,整个雅典地区和多个爱琴海岛屿仍面临野火风险。爱琴 海东部的希俄斯岛22日出现野火。强风推高火势,造成停电,岛上多个区域下达疏散令。数百名消防员 耗时四天才控制住火势。一名女子因涉嫌丢弃烟头引发火灾而被捕。 希腊通常每年5月开始进入野火季。近年来随着全球变暖,高温、干旱、强风等天气更常见,推高 野火发生的频 ...
极端天气气候事件趋多、趋强 中国2024年平均气温创历史新高
Yang Shi Wang· 2025-06-27 05:49
中国极端天气气候事件趋于增多、增强,气候风险指数呈升高趋势。1961~2024年,中国地表年平均气 温呈显著上升趋势,平均每10年升高0.31℃,高于同期全球平均升温水平。2024年,中国地表平均气温 较常年值首次高出1.0℃,为1901年以来的最暖年份。1961~2024年,中国极端高温和极端强降水事件 呈增多趋势。20世纪90年代后期以来登陆中国台风的平均强度波动增强。20世纪90年代中期以来,中国 气候风险指数明显偏高。2024年,中国气候风险指数为1961年以来最高。 (二)水圈 央视网消息:据中国气象局官方微博消息,6月27日,在中国气象局新闻发布会上,《中国气候变化蓝 皮书(2025)》正式发布。蓝皮书显示,20世纪90年代以来,全球海洋变暖、海平面上升、冰川消融显 著加速。中国是全球气候变化的敏感区和影响显著区,增暖速率高于同期全球平均水平,极端天气气候 事件趋多、趋强。2024年,中国年平均气温、天山乌鲁木齐河源1号冰川消融损失量、中国沿海海平面 等监测指标均创下新高。 (一)大气圈 全球变暖趋势在持续。2024年全球地表平均温度为1850年有气象观测记录以来的最高值,最近10年 (2015~ ...
【中国新闻网】研究发现高氧环境下全球变暖仍可导致海洋缺氧
Zhong Guo Xin Wen Wang· 2025-06-25 01:58
Core Insights - The research team led by researcher Chen Jitao from the Nanjing Institute of Geology and Palaeontology has discovered that global warming, under current icehouse climate and high oxygen conditions, may lead to widespread ocean deoxygenation, similar to the Late Paleozoic Ice Age [1][2] Group 1: Research Findings - The Late Paleozoic Ice Age is noted as the longest icehouse climate period since the establishment of terrestrial higher plants and ecosystems, with atmospheric CO2 levels spanning from pre-industrial levels to future high carbon emission scenarios [2] - The exceptionally high oxygen environment during this period may be linked to the gigantism of marine and terrestrial animals and could have triggered the major marine biological radiation event from the mid-Carboniferous to the early Permian [2] - The research team studied carbonate rock sediment sequences from 310 to 290 million years ago in the Guizhou Luodian Basin, integrating carbon isotope data, atmospheric CO2 concentration, volcanic activity, and vegetation evolution to analyze global carbon cycling and ocean redox states [2] Group 2: Implications of Findings - The study found that increased organic carbon burial in the ocean during the research period likely led to a decrease in atmospheric CO2 concentration and an increase in oxygen concentration [2] - Intermittent massive carbon emissions could trigger repeated climate warming and seabed deoxygenation, potentially expanding the area of ocean deoxygenation to 4%-12%, which may lead to stagnation or decline in marine biodiversity [2]
全球变暖让2500万美国人更加难以入睡
财富FORTUNE· 2025-06-24 12:42
Core Viewpoint - The article discusses the alarming connection between climate change and the increase in obstructive sleep apnea (OSA), highlighting that rising temperatures can exacerbate this common sleep disorder, affecting both health and economic productivity [1][5][9]. Group 1: Health Implications - Obstructive sleep apnea affects over 25 million adults in the U.S., characterized by repeated breathing interruptions during sleep due to relaxed throat muscles [1][2]. - Increased environmental temperatures are linked to a 45% higher probability of experiencing OSA on certain nights [1][2]. - Untreated or severe OSA can lead to serious health issues, including dementia, Parkinson's disease, hypertension, cardiovascular diseases, anxiety, and depression, potentially shortening lifespan [5][6]. Group 2: Economic Impact - The study estimates that the rise in OSA prevalence due to global warming will result in a loss of 30 billion USD in productivity and 68 billion USD in health deterioration costs globally [1][7]. - In 2023, the increase in OSA cases led to an additional 25 million days of absenteeism across 29 countries, translating to significant economic losses [7][8]. Group 3: Research Findings - The research analyzed sleep data from 116,620 participants across 29 countries over three and a half years, using FDA-approved monitoring devices to establish the link between daily environmental temperatures and OSA [2][3]. - The study warns that the sample may underestimate the health and economic burdens, as it primarily includes participants from developed countries with air conditioning, leaving low-income groups underrepresented [8]. Group 4: Future Projections - With global average temperatures expected to rise by 2.1°C to 3.4°C, the negative impacts of high temperatures on health are likely to worsen [9][10]. - Without effective policy measures to combat global warming, the burden of OSA could double by 2100 due to rising temperatures [10].
全球变暖竟让海洋缺氧 3亿年前气候状态警示危机
Yang Shi Xin Wen· 2025-06-24 04:54
Core Insights - An international research team led by researcher Chen Jitao from the Nanjing Institute of Geology and Palaeontology has published findings on the impact of global warming under high oxygen environments on oceans in the journal Proceedings of the National Academy of Sciences (PNAS) [1] Group 1: Research Context - The late Paleozoic glaciation period, lasting from 360 to 260 million years ago, is noted as the longest icehouse climate period since the establishment of terrestrial higher plants and ecosystems [4] - During this period, atmospheric oxygen levels peaked at approximately 1.2 to 1.7 times the current levels, potentially linked to the gigantism of marine and terrestrial animals and triggering significant marine biodiversity events [4] Group 2: Research Findings - The research team studied carbonate rock sediment sequences from 310 to 290 million years ago in the Guizhou Luodian Basin, exploring global carbon cycles and marine redox states during this period [5] - The findings indicate that increased organic carbon burial in the ocean may have led to a decrease in atmospheric CO2 and an increase in oxygen levels, despite high overall oxidation levels [5] - Intermittent massive carbon emissions during this time could cause repeated climate warming and hypoxia in the oceans, expanding the area of oceanic hypoxia to between 4% and 12%, potentially leading to stagnation or decline in marine biodiversity [5] Group 3: Implications - The study suggests that under current icehouse climates and high oxidation states, global warming may lead to widespread oceanic hypoxia, providing valuable insights into the interconnections and feedback mechanisms within the Earth's climate system [7]
大国院士丨追沙院士——专访中国科学院院士黄建平
Xin Hua She· 2025-06-17 08:52
Group 1 - The article highlights the significant contributions of Huang Jianping, an academician and atmospheric scientist, in researching sandstorms and climate change, emphasizing his dedication to national scientific needs [2][3][5] - Huang's team has developed various innovative monitoring systems and theories related to climate change and sandstorm formation over the past two decades [6][8] - The article discusses the recent extreme sandstorm events in China, attributing them to climate change and the limitations of local afforestation efforts in combating high-altitude dust transport [10][13] Group 2 - Huang Jianping explains that while China's afforestation efforts have reduced local sandstorms by 40%, they cannot fully prevent dust from high altitudes, which often originates from Mongolia [13][15] - The article notes that global warming is causing more frequent extreme weather events, impacting atmospheric circulation and leading to various climate anomalies [15][16] - The ecological restoration of the Loess Plateau is attributed to national reforestation projects and favorable atmospheric conditions, although future climate trends remain uncertain [18][19] Group 3 - Huang expresses pride in China's leadership in combating desertification, highlighting successful projects like the "locking" of the Taklamakan Desert [21][23] - The article clarifies that while desertification control has been effective, deserts will not transform into grasslands, maintaining their ecological characteristics over millennia [23][25] - The commitment of Huang's team and the younger generation to continue working in harsh environments reflects a deep-rooted passion for environmental stewardship [25][27]
美国国家海洋和大气管理局(NOAA):美国刚刚经历了有记录以来第二温暖的春天。
news flash· 2025-06-09 15:34
美国国家海洋和大气管理局(NOAA):美国刚刚经历了有记录以来第二温暖的春天。 跟踪全球极端天气动态 +订阅 ...
每日机构分析:5月21日
Xin Hua Cai Jing· 2025-05-21 13:39
Group 1 - Morgan Stanley upgraded the ratings of US stocks and sovereign bonds from "neutral" to "overweight," anticipating that a series of future rate cuts by the Federal Reserve will support bonds and boost corporate earnings [1] - The US dollar is expected to continue weakening due to diminishing economic growth advantages and narrowing yield differentials with other countries [1] - The global economy is still expanding despite uncertainties, with Morgan Stanley's economists predicting seven rate cuts by the Federal Reserve by 2026, which will support above-average valuations [1] Group 2 - The overall inflation rate in the UK rose from 2.6% in March to 3.5% in April, exceeding economists' expectations of 3.4%, but the possibility of a rate cut by the Bank of England in August should not be ruled out [3] - Thailand experienced accelerated external demand growth in the first quarter, attributed to importers making advance purchases to avoid potential future cost increases due to US tariffs [3] - The financial sector is considered the best investment opportunity in the market, with Singapore's expected P/E ratio at 14.3 and a dividend yield of 4%, indicating attractive valuations [3]