They are invisible to most of us. Yet every search on the Internet, every mobile payment, every video watched streaming, every conversation with artificial intelligence goes through the huge digital fortresses of data centres. Considered the brain of the global digital economy, these gigantic server warehouses have become indispensable for the functioning of states, businesses and citizens. But as the world accelerates its digital transformation, there is a growing urgency: what is the climate cost of this digital revolution? Behind the prowess of artificial intelligence is a much less visible reality: colossal energy consumption, increasing demand for water and a carbon footprint that now worries climate experts. An industry that consumes as much as a large country For a long time, the environmental impact of digital has remained in the shadows. The eyes were more focused on the...