Abstract
This account consists mainly of four sections: (1) Analysis on the depletion problem of petroleum resource that is essential to plastic production. (2) Critical evaluation of the current industrial and government policies that consider waste plastics as wastes but not recyclable materials resources. (3) Proposals for the promotion of monomer recycling systems as the innovation of plastic problems illustrated by the efficient depolymerization of polyethylene terephthalate) and poly(carbonate). (4) Manufacturing of plant-originating non-biodigradable plastics and their recycling as chemical resources are proposed for the future society. This study was done on the basis of the Zero-Emission concept.