Food waste in America is staggeringly high with almost 40 percent of our food getting tossed in the trash, reports Jill Isenbarger, the executive director of Stone Barns Center for Food and Agriculture, a nonprofit farm and education center based in upstate New York. That’s equivalent to putting $165 billion through the shredder, according to data published in a 2012 issue of Food Policy.

“If we diverted just 15 percent of this food waste, we could solve half of the hunger [problem in this country],” she tells Sonima’s founder, Sonia Jones, in this video interview. Watch to learn more about how Stone Barns and other advocates of changing our food system are working to eliminate food waste, support composting, and rethink how we use “unwanted” food parts, like fish heads and goat meat.

Related: 5 Ways to Stop Wasting So Much Food