Amelia's paper on optimizing the relative potentials of sulfone-based redox mediators with Cr complexes for carbon dioxide reduction has appeared online in Chem. Commun. (DOI: 10.1039/D4CC01988A). This study answered important questions about the system, including which relative potentials cause the greatest enhancement and whether the redox mediator formal reduction potential can be positive of the Cr complex and still achieve co-electrocatalysis. Congratulations to Ameila and all co-authors!