Because fossil fuels are a nonrenewable resource, alternative sources of chemical carbon will be necessary as petroleum based chemicals decline during the 21st century. Carbon dioxide can serve as a source of carbon for the synthesis of useful chemicals, thereby contributing to a sustainable chemical industry. A promising technology for CO[subscript 2] utilization is the alternating copolymerization of epoxides and CO[subscript 2] to afford polycarbonates. This article describes the catalysis of this polymerization process employing well-defined transition metal catalysts. It is intended for use in advanced inorganic chemistry courses, which are required for an ACS-approved degree in Chemistry, and integrates concepts in inorganic chemistry and polymer science. Concomitantly, a goal of this material is to contribute to the recently established polymer requirement by the Committee on Professional Training (CPT) for an ACS-certified degree. The principles of inorganic chemistry are shown to play vital roles in the mechanistic aspects of this copolymerization process.