Charlotte Douglas International Airport has deployed an army of 1.9 million worms to eat through its organic waste. The airport has reduced the trash it sends to the landfill by 70 percent. Julie Rose hide caption

itoggle caption Julie Rose

Glen Osterberg (right) and another line cook at Lupa learn how to use the LeanPath waste tracking software. Eliza Barclay/NPR hide caption

itoggle caption Eliza Barclay/NPR

The National Restaurant Association says getting restaurants to focus on the food waste problem is a big challenge. Justin Sullivan/Getty Images hide caption

itoggle caption Justin Sullivan/Getty Images

Most of the gleaming steel tanks outside Fage's yogurt factory hold milk. One, however, holds the yogurt byproduct whey. Dan Charles/NPR hide caption

itoggle caption Dan Charles/NPR

Tim Opper, of Cabot Cheese, inspects equipment that separates whey protein from sugar in the company's whey processing plant. Dan Charles/NPR hide caption

itoggle caption Dan Charles/NPR

Portland-based GO Box, a service that provides and cleans reusable take-out boxes for local food trucks, hopes to keep some of the city's food waste from going in the dumpster. iStockphoto.com hide caption

itoggle caption iStockphoto.com

Grocery auctions have been growing in popularity as a way to get a lot of food for not a lot of money. Matt Sindelar for NPR hide caption

itoggle caption Matt Sindelar for NPR

A thermometer reads the temperature atop an empty Maryland ice cream store freezer on Tuesday. Many grocery stores and restaurants are still waiting for power to return for the first time since last weekend's severe storms. Patrick Semansky/AP Photo hide caption

itoggle caption Patrick Semansky/AP Photo

LemonsPlace of production: Limassol, CyprusTransporting distance: 2.050 km Carbon footprint (total) per kg: 0,72 kg Water requirement (total) per kg: 448 l Klaus Pichler hide caption

itoggle caption Klaus Pichler

The Washington State Fruit Commission received $100,000 in federal money to promote cherries in Indonesia, but Sen. Tom Coburn says this is a waste of taxpayer money. Jeff Goulden/iStockphoto.com hide caption

itoggle caption Jeff Goulden/iStockphoto.com