For a long time it was thought that our natural resources were inexhaustible and as a result these resources were consumed more and more during the first industrial revolution and the associated technological progress. A linear system of mining raw materials, using them and disposal of materials was created. We call this "cradle to grave".
The Cradle-to-Cradle concept provides an alternative to this system. Materials are transformed into nutrients within application cycles, in which the idea of waste (as we currently know it) no longer exists.