This short brochure explains the core problems related to food loss and waste and introduced the SAVE FOOD Global Initiative on Food Loss & Waste Reduction. Food loss and waste have negative environmental impacts because of the water, land, energy and other natural resources used to produce food that no one consumes. The size of the impact increases with the level of processing and refining of the food products, and the stage (upstream or downstream) in the food supply chain at which the food is lost or wasted. »