Von Tscharner Fleming took time off during college to apprentice with farms around the world. She came back with a mission: develop tools to support young farmers, who can counter big agriculture. She’s started a laundry list of groups to do just that, including the National Young Farmers Coalition, the Agrarian Trust, and open-source platform Farm Hack. Von Tscharner Fleming, who has described herself as a “punky grassroots farming ninja,” is best known for Greenhorns, an organization that produces podcasts, blogs, networking events, and even a documentary to bolster the next generation of farmers.