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Solid-state nuclear magnetic resonance (SSNMR) methods have been routinely used for the characterization of both the structure and the dynamics of metal organic frameworks (MOFs), a collection of porous media investigated for potential applications in carbon capture technologies, selective separation of small molecules, and catalysis. The use and development of SSNMR techniques that enable the nondestructive characterization of the adsorbed behavior have become essential steps in bettering our understanding of MOFs and are often complementary to traditional methods of structural characterization. This Review aims to give a brief introduction to the relevant concepts of SSNMR and the methods employed when investigating the phenomenon of adsorbed carbon dioxide gas in MOFs. We summarize the published SSNMR literature on CO₂ in MOFs, as well as highlight the best experimental practices …