“…In other words, climate leadership reflects broader debates of structural and system-wide fragmentation taking place at the global level through contention, competition, and collaboration governance dynamics (Risse, 1995;Nye, 2019;Kim, 2020). Understanding their relevance in the policy process of achieving global targets, but also recognizing the space given to non-party stakeholders in the Paris Agreement (Chaloux, 2022), a set of regional federal governments have made their case as actors of local implementation but also as actors of global-reaching influence (Giudicelli, 2022). Interestingly, the polycentric context brought by Paris opens a two-fold stage for regional federal governments: (1) the recognition to internally act beyond a mere relay for national efforts, and, therefore, design and implement their territorial policies aligned with specific contexts and according to their legislative capacities (Ibidem); (2) but also the recognition of action across traditional national boundaries by encouraging the external engagement in climate governance dynamics (Paquin, 2020).…”