The founders of Brooklyn Grange, the world’s largest green rooftop farm, share their inspirational story of changing the world through entrepreneurship. In their effort to build the world’s first and largest commercial green rooftop farm, the founders of Brooklyn Grange learned a lot about building and sustaining a business while never losing sight of their mission—to serve their community by providing delicious organic food and changing the way people think about what they eat. But their story is about more than just farming. It serves as an inspirational and instructional guide for anyone looking to start a business that is successful while making a positive impact.