(FILES) A woman cools off under a mist sprayer during the annual street music festival 'Fete de la Musique' while taking part in a heatwave in Bordeaux, southwestern France on June 21, 2026. The EU climate monitor said on September 10, 2026 that August was the hottest single month ever recorded globally and that summer in western Europe was the warmest it had measured. The Copernicus Climate Change Service said global average air temperatures in August were 16.96C -- surpassing by 0.01C the previous high set in July 2023 -- and that western Europe endured its "warmest summer on record". (Photo by ROMAIN PERROCHEAU / AFP via Getty Images)