巴塞罗那经历百年最热6月 热浪席卷欧洲多地

Group 1 - The core viewpoint of the articles highlights the unprecedented heatwave affecting several European cities, particularly Barcelona, which recorded its highest June temperature since records began in 1914, with an average temperature of 26 degrees Celsius [1][2] - Barcelona's single-day maximum temperature reached 37.9 degrees Celsius on June 30, marking the highest daily temperature for June [1] - Spain's national average temperature for June was reported at 23.6 degrees Celsius, surpassing the previous record set in June 2017 by 0.8 degrees Celsius [1] Group 2 - The extreme temperatures are attributed to a strong heatwave linked to global climate change, as stated by the head of the Barcelona meteorological office [2] - In Paris, temperatures are forecasted to approach 40 degrees Celsius, prompting the closure of over 1,300 schools and adjustments to tourist activities at major landmarks [2] - Italy is also experiencing high temperatures, with 17 out of 27 major cities under heat warnings, and incidents of heat-related fatalities are being investigated [2]