Beneath the glow of multi‑storey chalets and private spas, the real engine of many Alpine resorts now runs in the dark along the slopes. Climate warming is shrinking the reliable snow window, yet the leisure economy at altitude still sells the promise of a full‑season, all‑ages ski playground.To keep that promise, resorts deploy what is essentially an open‑air cryogenic lab. High‑pressure snowmaki...More