Hawken et al. foresee the beginning of a new industrial revolution based on a very different mind-set than that of conventional capitalism. In a nature-centered capitalism, the environment will no longer be treated as a minor factor of production but rather an envelope containing, provisioning, and sustaining the entire economy. The authors contend that a radical increase in the resource productivity would be the key feature of the new capitalism in redesigning commerce to achieve sustainability. Using materials more efficiently will slow down the depletion of resources at the input end of the value chain, and lower the environmental pollution at the output end. End