The cultivation of ancient grains whose makeup hasn't been amended as much as modern wheat could allow the gluten-intolerant to have their bread and eat it, too.
Ignored orphan crops from the developing world may be the White Knight that rescues the Green Revolution from the Red Queen.
Antique apple orchards harbor untold heirloom varieties, but they're dying out.
Farm biodiversity is disappearing. If we would just eat endangered crops and livestock now, restoring their role in the food supply, we could save them from extinction.