Farmers stand at the center of the world, says Andrew Youn, cofounder of One Acre Fund, an agricultural organization that’s empowering sub-Saharan farm families with the loans, seeds, fertilizer and training needed to increase crop yields and end hunger. Meet Therese Niyonsaba, a Rwandan farmer who shares how the program helped her family prosper, and learn more about One Acre Fund’s goal to lead a farmer-focused green revolution and reach 6.8 million families by 2026. (This ambitious plan is a part of the Audacious Project, TED’s initiative to inspire and fund global change.)