Waste not Food

Step Five: Reduce Waste

An estimated 25 percent of the world’s food calories and up to 50 percent of total food weight are lost or wasted before they can be consumed. In rich countries most of that waste occurs in homes, restaurants, or supermarkets. In poor countries food is often lost between the farmer and the market, due to unreliable storage and transportation. Consumers in the developed world could reduce waste by taking such simple steps as serving smaller portions, eating leftovers, and encouraging cafeterias, restaurants, and supermarkets to develop waste-reducing measures. Of all of the options for boosting food availability, tackling waste would be one of the most effective.

Taken together, these five steps could more than double the world’s food supplies and dramatically cut the environmental impact of agriculture worldwide. But it won’t be easy. These solutions require a big shift in thinking. For most of our history we have been blinded by the overzealous imperative of more, more, more in agriculture—clearing more land, growing more crops, using more resources. We need to find a balance between producing more food and sustaining the planet for future generations.

This is a pivotal moment when we face unprecedented challenges to food security and the preservation of our global environment. The good news is that we already know what we have to do; we just need to figure out how to do it. Addressing our global food challenges demands that all of us become more thoughtful about the food we put on our plates. We need to make connections between our food and the farmers who grow it, and between our food and the land, watersheds, and climate that sustain us. As we steer our grocery carts down the aisles of our supermarkets, the choices we make will help decide the future.

Jonathan Foley directs the Institute on the Environment at the University of Minnesota. Jim Richardson’s portraits of farmers are the latest in his body of work documenting agriculture. George Steinmetz’s big-picture approach reveals the landscapes of industrial food.

The magazine thanks The Rockefeller Foundation and members of the National Geographic Society for their generous support of this series of articles.

All maps and graphics: Virginia W. Mason and Jason Treat, NGM Staff. A World Demanding More, source: David Tilman, University of Minnesota. Agriculture's Footprint, source: Roger LeB. Hooke, University of Maine. Maps, source: Global Landscapes Initiative, Institute on the Environment, University of Minnesota.

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