Jean-Michel Valantin is Director of Research at CAPRI, in charge of the Climate Risk Observatory. He holds a PhD in strategic studies and defense sociology (EHESS, Paris), and has published "Guerre et nature" (Prisma, 2013), " Géopolitique d'une planète déréglée" (Seuil, 2017) and " El Niño: histoire et géopolitique d'une bombe climatique" (Nouveau Monde, 2023).