受碳排放影响，西欧经历了有记录以来最热的六月，地表气温较历史平均水平高出3.06摄氏度 [1][2]。欧盟哥白尼气候变化服务局数据显示，该月平均气温达到20.74°C，比1991-2020年基准期水平高逾3°C；全球同期平均气温为16.54°C，较工业化前（1850-1900年）水平高出1.39°C [2]。非极地地区海洋表面平均温度达20.86°C，创下六月历史新高 [2]。
此次极端热浪导致法国和西班牙爆发大规模野火，欧盟范围内烧毁土地面积比往年多出56%；其中法国烧毁面积达35,400公顷，西班牙为55,128公顷 [1]。巴塞罗那气温一度飙升至40.5°C，创下当地纪录 [1]。超过4.1亿欧洲人经历了35°C以上的高温天气 [2]。
高温已造成严重的人员伤亡与生态威胁。热浪导致数千例死亡事件发生，主要集中在法国、西班牙和比利时；其中比利时报告6月超额死亡人数达1,747例，德国今年夏季因高温导致的死亡人数为5,120例 [3][2]。世界卫生组织估计过去四年欧洲已有约20万人死于高温 [1]。
英国连续遭遇三次热浪，多地打破历史纪录；萨里郡气温超过35°C（95°F），周四更是成为今年第八天突破34°C的高温日，打破了此前由2020年和1976年保持的纪录 [3]。英格兰急诊科接诊人数在六月首次超过8万例，南部中央救护车服务部门在此期间指导公众使用除颤器的呼叫量激增118%；英国逾千所学校因高温关闭或部分停课 [3]。
科学家指出，今年夏季出现的极端高温仅能归因于目前已发生的约1.4°C的气候变化，而这主要源于化石燃料的燃烧 [3]。若继续依赖化石能源，此类热浪将变得更加频繁且强烈。此次事件已对欧洲各国的公共卫生系统、医疗资源、基础设施及能源供应造成严重冲击 [3]。此外，英国城市平均树木覆盖率仅为18%，远低于欧洲的30%平均水平，加剧了局部高温效应 [1]。
Western Europe has recorded its hottest ever June, with surface temperatures rising by an average of 3.06°C above historical norms [1]. According to data from the EU Copernicus Climate Change Service cited in reports, the continent's average temperature for June reached 20.74°C, exceeding the 1991-2020 baseline by more than 3°C [2][3]. Globally, June temperatures averaged 16.54°C, marking a rise of 1.39°C above pre-industrial levels (1850–1900) and 0.56°C above the modern average [1][2]. The non-polar oceans also saw record-breaking surface temperatures in June, averaging 20.86°C [2].
The extreme heatwaves have triggered widespread wildfires across France, Spain, and Belgium, destroying land area that is 56% higher than usual for this time of year [1]. Specifically, fires burned through 35,400 hectares in France and 55,128 hectares in Spain [1]. Barcelona recorded a temperature of 40.5°C, setting a new record [1]. Over 410 million people across Europe experienced temperatures exceeding 35°C during this period [2].
The human toll has been severe, with heatwaves linked to thousands of deaths primarily in France, Spain, and Belgium [2][3]. Excess death counts reported include 1,747 in Belgium for June alone [3], while Germany recorded 5,120 heat-related deaths this summer [3]. The World Health Organization estimates that approximately 200,000 people died from high temperatures across Europe over the past four years [1]. In England, average attendances at Accident & Emergency departments exceeded 80,000 for the first time ever in June [3], and calls to ambulance services directing the public on defibrillator use surged by 118% during the heatwave [3]. More than 1,000 schools across the UK were closed or partially shut due to the conditions [3].
Scientists attribute these intensifying events directly to climate change driven by fossil fuel combustion. Friederike Otto stated: "The heat we have seen this summer is only possible because of the 1.4C of climate change we have to date, due to the burning of fossil fuels." [3] The UK faced its third heatwave of the year in Surrey alone, where temperatures surpassed 35°C (95°F) [3]. On Thursday specifically, eight days this year saw temperatures exceed 34°C, breaking previous records set in 2020 and 1976 by one day each [3]. Urban infrastructure has also struggled; the average tree cover in UK cities is only 18%, significantly lower than the European average of 30% [1], exacerbating heat retention.