Mistral AI—Mistral AI's EUR50B 'Campus IA' data center faced four administrative court challenges over farmland loss and energy/water impact

Mistral AI is a technology partner and co-investor (alongside majority financier MGX, an Abu Dhabi sovereign wealth fund, plus Nvidia and Bpifrance) in the EUR50 billion 'Campus IA' data center being built on 70 hectares of farmland in Fouju, Seine-et-Marne, France, displacing nine local farms. France's Environmental Authority flagged the project's electricity consumption -- comparable to a nuclear reactor at full output -- and raised concerns about air pollution from diesel backup generators, noise, bird-population impacts, and proximity to a drinking-water catchment area. On September 30, 2026, a coalition including France Nature Environnement, the Ligue pour la protection des oiseaux, Confederation paysanne, and Soulevements de la Terre filed four challenges in the Paris Administrative Appeals Court seeking to annul the prefectural permits, backed by a 47,000-signature petition; critics, including a French senator, also questioned whether the project's permitting bypassed Seveso high-risk-site regulations via a 31-day public inquiry.