I’m Research Director in Climate Physics in the Laboratoire de Science du Climat et de l'Environnement (LSCE) of the Institute Pierre Simon Laplace at the French National Center for Scientific Research (CNRS). I’m an expert of weather extreme events such as cold spells, heatwaves, cyclones and severe thunderstorms. My research activity focuses on the attribution of extreme events to climate change, that is understanding how much greenhouse gases influence the occurrence of extremes. I am also external fellow of the London Mathematical Laboratory, and of the Laboratoire de Météorologie Dynamique de l'École Normale Supérieure in Paris.  Since 2025, I have also been appointed as a Lead Author of Chapter 3 of Working Group I for the upcoming IPCC Assessment Report (AR7).