A new collaboration between Japan Airlines, recycling firm Japan Environmental Planning (Jeplan), and the Green Earth Institute. Jeplan developed a method to turn discarded garments, collected from retailers like Aeon and Muji, into biofuel using a kind of fermentation technology and is in the process of building an experimental fuel plant at one of its factory locations. Although cotton yields only a small amount of fuel, the resourcefulness of the technology and benefits of diverting unwanted clothes from landfills is promising. Entrepreneur Michihiko Iwamoto, who founded Jeplan in 2007, spent five years developing a way to create bioethanol from cast-off T-shirts and denim jeans. Jeplan will be building an experimental fuel plant at one of its factory locations. The company says it plans to begin test flights using a blend of conventional and cotton-derived fuel in 2020, before establishing a commercial plant by 2030.