The non-redox fixation of CO2 in cyclic and polymeric carbonates is regarded as one of the most promising technologies for small-scale CO2 utilization. Yet, most heterogeneous catalysts reported to date require the use of co-catalysts, harsh reaction conditions, and non-base metals. In this issue of Chem, Yavuz and coworkers report the one-step synthesis of a new covalent organic polymer that circumvents these issues.