A scene from the documentary Wasted! The Story of Food Waste.

Every year vast resources of water, land and energy are dedicated to growing the food we eat. Yet every year 1.3 billion tons of food — about a third of the world’s food — is thrown away even before it reaches the plate.

The new documentary Wasted! The Story of Food Waste, by chef-turned- TV-personality Anthony Bourdain, explores the major sources of food waste, from the farming and fishing industries to supermarket chains and, yes, school cafeterias. It also looks at solutions, such as reorienting our perspectives on food that is normally cast aside, and changes we can make to the food production chain to create a more sustainable food system. Watch the trailer.