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Un pyromane n’acceptera jamais qu’on réduise progressivement son stock d’allumettes pourtant il faut le contraindre. Résumé d’une tempête qui a lieu en ce moment à la COP28 à Dubaï. Alors, voici la scène : la COP28, en pleine effervescence à Dubaï, entre dans son sprint final. Imaginez une course où au lieu de coureurs, on …

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Persistent heat extremes can have severe impacts on ecosystems and societies, including excess mortality, wildfires, and harvest failures. Here we identify Europe as a heatwave hotspot, exhibiting upward trends that are three-to-four times faster compared to the rest of the northern midlatitudes over the past 42 years. This accelerated trend is linked to atmospheric dynamical changes via an increase in the frequency and persistence of double jet stream states over Eurasia. We find that double jet occurrences are particularly important for western European heatwaves, explaining up to 35% of temperature variability. The upward trend in the persistence of double jet events explains almost all of the accelerated heatwave trend in western Europe, and about 30% of it over the extended European region. Those findings provide evidence that in addition to thermodynamical drivers, atmospheric dynamical changes have contributed to the increased rate of European heatwaves, with implications for risk management and potent