France, il etait une fois demain

France, like the rest of the world, is facing global warming, rising sea levels, and the imminent depletion of natural resources. This list fuels fears about the future for all generations. What if thinking about the France of tomorrow did not lead to the end of history, but rather to the beginning of a new one? This imaginary yet well-researched journey invites us to envision France in 2100, exploring what might change in Normandy and the Pas-de-Calais as sea levels rise, how agriculture might be reinvented in the Beauce region, how to adapt to the melting of Alpine glaciers, and how to live with increasing aridity in Occitanie.