The 1989 Hollywood hit Back to the Future Part II, saw a time-travelling DeLorean return from the year 2015, fitted with a device to use trash as fuel. Fast forward to the real 2015 to meet Masaki Takao, the man who made this technology a reality by recycling discarded clothing to make biofuel as well as developing recycling techniques, Takao has enlisted retailers and the government to engage the public in a groundbreaking garment-collection scheme. Now he hopes recycling can change the world.