Is a sustainable world even possible? As founding director of Forum for the Future and former chair of the UK Sustainable Development Commission, Jonathon Porritt spent decades promoting sustainable policies and practices. Then it occurred to him: If we can’t see it, we can’t be it. From that realization came The World We Made, a book written from the perspective of a teacher in 2050 who relates, in stories, drawings and occasional admonitions, “how we got our world back from the brink of collapse to where we are now in 2050.” Ensia and Forbes caught up with Porritt to ask him about the book and what he hopes it might accomplish.