Qatar Builds the World’s Largest Desalination Plant — 600 Million Liters a Day Qatar has completed the world’s largest desalination plant, capable of producing 600 million liters of drinking water every single day. Built along the coast, the facility transforms seawater into clean, potable water—securing supply for a nation with extremely limited natural freshwater resources. The project represents a major leap in water security, large-scale engineering, and climate adaptation, ensuring reliable