Forty percent of food in the United States is never eaten, amounting to $165 billion a year in waste, taking a toll on the country’s water resources and significantly increasing greenhouse gas emissions, according to a report from the Natural Resources Defense Council released this week.

The group says more than 20 pounds of food is wasted each month for each of 311 million Americans, amounting to $1,350 to $2,275 annually in waste for a family of four. Think of it as dumping 80 quarter-pound hamburger patties in the garbage each month, or chucking two dozen boxes of breakfast cereal into the trash bin rather than putting them in your pantry.

The report points out waste in all areas of the U.S. food supply chain, from field to plate, from farms to warehouses, from buffets to school cafeterias.