The Upcycle is the eagerly awaited follow-up to Cradle to Cradle, one of the most consequential ecological manifestoes of our time. Now, drawing on the green living lessons gained from 10 years of putting the Cradle to Cradle concept into practice with businesses, governments, and ordinary people, William McDonough and Michael Braungart envision the next step in the solution to our ecological crisis: We don't just use or reuse and recycle resources with greater effectiveness, we actually improve the natural world as we live, create, and build.