Today, half the world's food production—what we eat—depends on chemical fertilizers and herbicides. These are the foundation of Conventional Agriculture, but they pollute our soils, drinking water, waterways, and oceans. Unconventional farmers focus on building soil fertility by working with nature, not against it. The Lexicon of Sustainability's Know Your Food is a short film series that introduces consumers to key terms and principles that can help them make more informed decisions about the food they eat. Visit www.lexiconofsustainability.com to learn more. PBS Food celebrates a love of food and cooking with the best recipes and fresh ingredients. No gimmicks, just food. Find recipes from your favorite cooking shows and more: www.pbs.org/food Follow PBS Food on Twitter: @PBSFood