据美国广播公司24日消息，当地时间22日，美国西部遭遇极端高温天气，极端高温风险预警发布区域覆 盖大约120万人。相关天气预报显示，包括华盛顿州、俄勒冈州、亚利桑那州、加利福尼亚州南部等多 地的气温周末会达到"危险"水平。 据美国国家气象局预报，最大一片极端高温风险预警发布区域位于亚利桑那州图森市周边，最高气温预 报在39至42摄氏度之间。 责编：陈菲扬、卢思宇 ...

新华社北京8月24日电 美国西部22日至23日遭遇极端高温天气，一些人病倒住院。华盛顿州、俄勒 冈州、内华达州、亚利桑那州、加利福尼亚州南部等地的气温周末预计将达到"危险"水平，其他地区也 不同程度地受到热浪影响。 高温天气对正在波特兰参加年度"越山向海"马拉松接力赛的选手来说尤具挑战性。"越山向海"是当 地从1982年起举办的知名赛事，选手组队参加，完成从波特兰附近的胡德山接力跑到太平洋海岸共300 多公里的赛程，今年的比赛于22日至23日举行。 据美联社报道，有一名参赛选手在跑了6.4公里后晕倒。当天，波特兰及其周边地区发布了极端高 温预警，与热浪相关的医疗和意外事故频发，急诊就医和911报警次数上升。 波特兰所在的马尔特诺马县卫生部门官员布伦登·哈格蒂通过电子邮件告诉美联社记者，通常来 说，当地周末急诊接待人数极少，"昨天（22日），我们接待了16名患者，其中6人是参加'越山向海'接 力赛的选手。"他补充说："波特兰市区正面临2025年最严重的高温风险。" 当地官员说，波特兰市的历史最高温出现在2021年6月，当时一度达到46摄氏度，那波热浪导致上 百人死亡，其中许多是独居者，绝大部分在60岁以上。（沈 ...

Group 1 - Southern Europe is experiencing the most severe summer wildfires in 20 years, with Portugal reporting a total burned area exceeding 139,000 hectares, which is 17 times higher than the same period last year [1][2] - From July 14 to 15, the burned area in Portugal increased by nearly 64,200 hectares, accounting for 46% of the total burned area this year, with 6,229 wildfires reported, a 79% increase year-on-year [2] - In Spain, wildfires have resulted in 7 fatalities, with the western region being the most severely affected, and over 150,000 hectares of land burned this wildfire season [2][3] Group 2 - Portugal has entered a national state of alert due to extreme heat since July 3, deploying thousands of firefighters and requesting assistance from the EU Civil Protection Mechanism [2] - As of July 16, there are 44 active fire incidents in Portugal, with 4,330 firefighters, 1,400 vehicles, and 25 aircraft involved in firefighting efforts [2] - The wildfires have led to the closure of railways from Madrid to the northwest Galicia region and the shutdown of 10 major roads in Spain [3][4]

Group 1 - Wildfires in central Portugal are causing severe damage to local forests, olive groves, and vineyards, impacting regional ecology and agricultural production [2] - In northwestern Spain, wildfires have led to the emergency closure of parts of the high-speed rail line between Madrid and Galicia, with over 10 active fire points reported [4] - Greece is facing multiple wildfires, with thousands of firefighters engaged in firefighting efforts, and several villages evacuated due to the ongoing crisis [6] Group 2 - The combination of high temperatures, strong winds, and low humidity is complicating firefighting efforts in Greece, making it a challenging battle for local authorities [6] - Thousands of hectares have been burned in Spain, with some fire situations classified as "very serious," leading to the evacuation of thousands of residents [4] - Emergency response mechanisms have been activated in various regions affected by wildfires across Portugal, Spain, and Greece [2][4][6]

Core Insights - The World Meteorological Organization and other agencies have issued warnings about extreme heat, urging countries to enhance early warning systems, develop public health response plans, and improve inter-agency collaboration to address escalating climate risks [1][2] Group 1: Extreme Heat Events - In 2025, global temperatures are expected to break records, with July being the third hottest month on record [1] - Turkey recorded a maximum temperature of 50.5 degrees Celsius, while Sweden and Finland experienced prolonged temperatures above 30 degrees Celsius [1] - Japan recorded a new high of 41.8 degrees Celsius in August, with parts of Pakistan exceeding 42 degrees Celsius and some areas surpassing 45 degrees Celsius [1] Group 2: Impact of Extreme Heat - The ongoing high temperatures have led to severe wildfires, with Canada experiencing its worst wildfire season on record, burning over 6.6 million hectares as of August 3 [1] - Smoke from hundreds of fire points has deteriorated air quality in multiple provinces in Canada and northern U.S. states, even reaching Europe [1] - Countries like Turkey, Greece, and Cyprus have also faced wildfires resulting in casualties and mass evacuations [1] Group 3: Health Risks and Projections - Extreme heat is referred to as a "silent killer," posing long-term threats such as health risks, power outages, and worsening air quality [2] - An estimated 489,000 deaths annually from 2000 to 2019 were linked to heat-related causes, with 45% occurring in Asia and 36% in Europe [2] - Implementing heat health warning systems in 57 countries could potentially save nearly 100,000 lives each year [2]

Group 1 - The World Meteorological Organization (WMO) highlights the impact of extreme heat on a large global population, exacerbated by wildfires and air pollution, emphasizing the need for improved early warning systems and health action plans related to heat [1][2] - Recent data indicates that July 2025 was the third hottest July on record globally, with average sea surface temperatures also being the third highest recorded [1] - In Europe, countries like Sweden and Finland experienced prolonged periods of temperatures above 30 degrees Celsius, while Southeast Europe faced heatwaves and wildfires [1] Group 2 - Extreme heat has contributed to devastating wildfires in Cyprus, Greece, and Turkey, leading to evacuations and fatalities [2] - Hundreds of wildfires in Canada from late July to early August have resulted in deteriorating air quality across multiple provinces and northern U.S. states [2] - The WMO is committed to enhancing early warning systems related to heat and is collaborating with various partners to advance health action plans addressing heat-related issues [2]

Group 1 - The extreme heat wave in South Korea has led to significant increases in the prices of agricultural products such as watermelon, tomatoes, peaches, and cabbage [1][2] - The average retail price of watermelon has reached 33,337 KRW (approximately 173 RMB), marking a 33.7% increase compared to the previous month and a 17.6% increase year-on-year [1] - Tomato prices have surged to an average of 6,716 KRW (35 RMB) per kilogram, reflecting a nearly 70% increase from the previous month and over 42% from the same period last year [1] Group 2 - The average price for a pack of 10 peaches is 21,133 KRW (109 RMB), showing significant increases both month-on-month and year-on-year [1] - Cabbage prices have surpassed 6,000 KRW (31 RMB) per head, reaching 6,114 KRW (32 RMB), which is a 68% increase from the previous month and an 11.2% increase compared to last year [1] - The South Korean government plans to implement measures to stabilize the market supply of key agricultural products due to the rising prices [1]

Core Insights - Extreme heat has led to significant short-term price increases in various food items, contributing to inflation [1][3] - The research indicates that food prices typically change within one to two months following extreme weather events [1][3] - The study highlights that the frequency and intensity of extreme weather events have increased compared to 30-40 years ago, with expectations of continued trends as greenhouse gas emissions rise [1][5] Price Increases in Specific Foods - Specific food items have seen dramatic price increases due to extreme weather, with Spanish olive oil prices rising by 50% and U.S. vegetable prices increasing by 80% [3] - In Australia, iceberg lettuce prices surged over 300% due to severe flooding, impacting local fast-food chains [3] - Global cocoa prices rose approximately 300% in April 2024 due to drought conditions in Ghana and Côte d'Ivoire, affecting chocolate prices in the UK [3] Economic and Social Implications - Rising food prices are expected to impact food security, particularly in poorer countries, and may exacerbate overall inflation [4] - The increase in food prices has significant implications for election outcomes, as seen in the recent U.S. elections where living costs played a crucial role [4] - Financial institutions are increasingly recognizing the relationship between extreme heat and inflation, with HSBC noting that tracking temperature trends is becoming a better method for predicting food inflation in India [6] Policy and Regulatory Responses - The European Central Bank has begun incorporating climate change and natural degradation into its monetary policy considerations [6] - ECB officials have noted the significant impact of extreme heat on inflation rates and GDP, emphasizing the need for financial stability assessments that include natural risk factors [6]

Core Viewpoint - The extreme heat waves experienced in multiple countries in the Northern Hemisphere this summer are attributed to abnormal atmospheric circulation, occurring against the backdrop of significant greenhouse gas emissions and rising global temperatures [1] Group 1 - The summer of this year has seen record-breaking high temperatures in various countries [1] - The chief of the International User Service Center at the National Satellite Meteorological Center, Zheng Zhaojun, indicates that the extreme heat is a direct result of abnormal atmospheric circulation [1] - The phenomenon of extreme heat is occurring within the context of ongoing greenhouse gas emissions and a continuous rise in global temperatures [1]

Core Viewpoint - The recent extreme heat wave in China has led to record high temperatures, causing significant impacts on both residents and agriculture, with temperatures exceeding 44.2°C in some areas [1][7]. Weather Impact - Zhengzhou experienced its highest temperature of 44.2°C on July 15, with 94 weather stations reporting temperatures above 40°C [1][7]. - Residents reported incidents of glass shattering due to the heat, with one individual noting that the inner layer of a bathroom window cracked in a "spider web" pattern [1][3]. - In Xinxiang, a farmer reported the death of five geese due to extreme heat, marking an unprecedented event in over a decade of poultry farming [6]. Forecast and Future Conditions - The current heat wave is expected to continue, with temperatures remaining high across a significant portion of China, affecting approximately one-third of the country's land area [7][9]. - The forecast indicates that temperatures will remain above 40°C in various regions, including parts of Shaanxi, Henan, and Hubei [7][9]. - A cooling trend is anticipated starting July 17, as cold air and rainfall are expected to reduce the intensity and range of high temperatures [9][10].