The Convention of the Events (COP) beneath the UNFCCC is a key discussion board for world local weather motion, combining high-level negotiations with participation from non-state actors. Subnational governments interact by means of paradiplomacy, utilizing facet occasions and collaborations to advocate for stronger local weather insurance policies and affect coverage outcomes. The COP is a vital world discussion board for addressing local weather change, bringing collectively almost 200 nations beneath the United Nations Framework Conference on Local weather Change (UNFCCC). Since its inception in 1995, COP has served as a platform for nations to evaluate progress, share methods, and negotiate commitments to cut back emissions and fight local weather change. COP capabilities by means of a mixture of high-level plenaries, the place overarching selections are debated and adopted, technical negotiations in smaller working teams, and the place delegates craft detailed closing agreements.
Because the local weather disaster deepens, COPs have grow to be a governance stage, additionally serving as a hub for non-state actors taking part in facet occasions, exhibitions, and casual consultations. More and more, the worldwide actions of subnational governments (i.e., regional and native governments) – conceptualized as paradiplomacy – have emerged as important to those discussions. By taking part in COPs, they put ahead concrete paradiplomacy actions to affect world (local weather) coverage outcomes.
A Conceptual Framework of Evaluation
Though subnational actors aren’t a part of formal COP negotiations, they nonetheless play an essential position in influencing world local weather insurance policies by selling and demanding extra substantial local weather commitments (i.e., advocacy). To clarify how such actuality happens, we spotlight the precise paradiplomacy devices (i.e., public coverage instruments to have interaction in worldwide actions) by means of which areas and cities take part in world boards like local weather COPs. In response to latest literature, subnational actors might symbolize themselves in such worldwide gatherings through intra-state/extra-state routes. For readability, intra-state routes contain being represented throughout the federal or central authorities’s delegation on the COP. In distinction, extra-state routes confer with subnational governments autonomously sending their delegation to take part in non-official facet occasions and strategic conferences, as can be additional defined.
Second, by partaking in worldwide actions through totally different paradiplomacy methods, both intra-state or extra-state routes, regional and native entities intend to lift consciousness of local weather points and showcase their native initiatives through non-official interactions all through the COP to extend their affect. These paradiplomacy interactions happen in two principal methods: (1) collectively, by partaking in networks with different areas, cities, and organizations, which helps amplify their voices and advocate for extra substantial local weather commitments, and (2) individually, by (2.1.) partaking inside their central authorities’s delegation or by (2.2.) autonomously partaking with different stakeholders within the COP course of to highlighting their very own pursuits both. Collectively, subnational governments take part in networks’ facet occasions equivalent to workshops, panels, and gatherings to emphasise their collective efforts. Individually, they collaborate with their nationwide state to align insurance policies and affect the nationwide positioning throughout negotiation or autonomously interact in strategic conferences with counterparts like worldwide organizations, civil society teams, and NGOs, in addition to dialogues with different cities and areas to develop shared local weather methods and future partnerships.
By bridging paradiplomacy methods with the kind of paradiplomacy interactions, we discover that these are interrelated and outline the kind of engagement of various subnational governments throughout COPs. Paradiplomacy devices—intra-state routes and extra-state routes—are by subnational governments to have interaction in worldwide actions. These devices differ when it comes to how subnational governments work together inside or past the framework of their nationwide governments (see Desk 1).
Methods and interplay are interrelated, representing complementary approaches for subnational actors to reinforce their affect. Intra-state routes leverage nationwide illustration to align pursuits, whereas extra-state routes develop their outreach by means of particular person and collaborative efforts. Whereas akin to totally different paradiplomacy and respective modo interactions, these aren’t unique, and areas and cities might undertake totally different mixtures. Collectively, they spotlight the multifaceted methods subnational governments take part in world local weather governance.
They do that by elevating consciousness of local weather points and showcasing their native initiatives through non-official interactions all through the COP. These paradiplomacy interactions happen in two principal methods: (1) collectively, by taking part in networks with different areas, cities, and organizations, which helps amplify their voices and advocate for extra substantial local weather commitments, and (2) individually, by partaking immediately with different stakeholders within the COP course of to spotlight their pursuits. Collectively, subnational governments take part in networks’ facet occasions equivalent to workshops, panels, and gatherings to emphasise their collective efforts. Individually, they collaborate with their nationwide state to align insurance policies or autonomously interact in strategic conferences with counterparts like worldwide organizations, civil society teams, and NGOs, in addition to dialogues with different cities and areas to develop shared local weather methods.
Intra-state routes: Particular person Modes of Interactions
When adopting intra-state routes as a part of their paradiplomacy methods, subnational governments act by means of their inclusion within the federal or nationwide delegation to advocate for his or her priorities. In these circumstances, subnational actors take part within the COP course of beneath the umbrella of their nationwide authorities, utilizing the delegation as a platform to symbolize their pursuits and affect world local weather discussions.
Throughout COPs, particular person interactions beneath intra-state routes usually manifest in technique conferences and consultations between subnational and nationwide representatives. As an example, subnational actors might meet with federal negotiators to offer updates on native progress, suggest regional options, or advocate for higher ambition in nationwide local weather commitments. Past inner conferences, they could additionally function advisors or contributors throughout the broader nationwide delegation, taking part in panels, technical workshops, or coverage briefings on behalf of their authorities. Within the case of Canada, for example, the provinces of British Columbia and Ontario have constantly joined the Canadian delegation from 1992 as much as 2021 (as essentially the most up-to-date sources). Equally, the President of the Zagreb Metropolis Meeting participated in COP29 as a speaker specializing in Nationwide Adaptation Plans (NAPs) and native authorities’ contributions in shaping them. The dialogue will emphasize the vital position of cities and areas in addressing native adaptation wants and aligning them with broader nationwide adaptation methods. The town of Glasgow gives one other illustration, the host of COP26, which labored with the Scottish and UK governments to align its city local weather methods with nationwide power effectivity targets, evidencing that cities can function platforms for advancing nationwide targets in city contexts.
By embedding themselves within the nationwide delegation, subnational governments leveraging intra-state routes can amplify their affect and be sure that their views form the overarching local weather insurance policies their nations current on the worldwide stage.
Further-state Routes: Collective and Particular person Modes of Interactions
As talked about, when endorsing extra-state routes as a part of their paradiplomacy technique, subnational entitiesoperate as actors representing their very own place. By way of their delegation, areas and cities might select to take part in COP utilizing collective and particular person interactions, more often than not taking the chance to endorse each modes to extend their possibilities of affect.
Collective interplay takes place by means of collaborative platforms referred to as transnational networks. In response to the literature, these are described as casual cross-border interactions involving not less than one non-state actor or an entity not representing a nationwide authorities or intergovernmental group. By interacting by means of such collaborative platforms, every delegation of subnational governments integrates a united entrance emphasizing bold insurance policies and sharing modern options for tackling local weather change. Outstanding examples of networks embody the Regions4 or the C40 Cities Local weather Management Group or the under2Coalition, which unite jurisdictions dedicated to decisive local weather motion, usually surpassing nationwide authorities pledges. By collaborating and presenting a united entrance, these subnational governments affect local weather dialogue, emphasizing the importance of bold insurance policies and sharing profitable methods for tackling local weather change.
Outdoors COPs, networks facilitate knowledge-sharing and collective initiatives concerning local weather coverage. However, throughout COPs, they manage insider actions to share finest practices amongst members, equivalent to workshops, panels, and roundtable discussions the place subnational leaders and consultants talk about particular local weather subjects, share finest practices, and showcase profitable initiatives. Current examples embody the panels organized by Regions4 throughout COP28 and COP29, the Native Local weather Motion Summit (LCAS) throughout COP28, and the Under2 Coalition Common Meeting, which occurred alongside COP29 in Baku. Apart from these actions, there are alternatives to attach and kind partnerships between networks and different stakeholders to show collaborative commitments and emphasize collective ambition. A transparent expression of such exercise issues the C40 partnership and NUS Cities at COP29 targeted on city local weather resilience.
Moreover, coverage briefings are additionally a results of collective interactions. The latter intends to tell decision-makers in regards to the significance of subnational motion whereas advocating for greater commitments, such because the letter endorsed by mayors, governors, and subnational leaders beneath C40 and the Regions4 Progress Report 2024 printed throughout COP29. By way of a single collective voice, the interplay of subnational actors through networks creates momentum and encourages negotiating events to undertake extra bold insurance policies.
Then again, particular person interplay inside extra-state routes happens by means of direct engagement by delegations of subnational governments with a wide range of state and non-state actors current within the COP, which embody worldwide organizations, states, NGOs, non-public sector representatives, and different subnational entities. These interactions are characterised by unbiased efforts to advertise their delegation’s insurance policies, initiatives, and commitments to addressing local weather change. By performing autonomously, subnational delegations showcase their distinctive contributions, foster tailor-made partnerships, and place themselves as influential actors in world local weather governance.
On this case, actions embody discussions with the totally different stakeholders concerning various subjects (emissions discount, local weather finance, renewable energies, inexperienced economic system, amongst others), equivalent to strategic conferences to advocate bilateral and multilateral collaborations and partnerships with worldwide organizations, civil society, and non-governmental organizations (NGOs) but in addition dialogues with different cities and areas to foster future collaborations on shared local weather methods.
A proactive illustration of such apply in bilateral phrases was expressed by California throughout COP23, expressing its intent to maintain shut dialogues with the EU on the design and implementation of carbon markets throughout COP23. Throughout COP28, California’s delegation has additionally launched two new worldwide local weather multilateral partnerships and becoming a member of one: The Subnational Methane Motion Coalition (a partnership of subnational governments which can be dedicated to lowering methane), the Mediterranean Local weather Motion Partnership (Assertion of Dedication to determine the Mediterranean Local weather Motion Partnership); and the World Offshore Wind Alliance (a coalition aiming to generate 380 gigawatts (GW) of offshore wind power by 2030, aligning with California’s personal renewable power targets). Throughout this identical, COP Québec’s delegation, Lithium Universe, and Investissement Québec have additionally engaged in strategic dialogues for utilizing inexperienced hydroelectric energy from Hydro-Québec for the eco-friendly lithium refinery hub, which can produce 16,000 tons of battery-grade lithium carbonate yearly which can increase North America’s provide. Newer examples are the Malaysian Johor state and Japan’s Saitama metropolis, which signed a memorandum of bilateral cooperation throughout COP29 on the sustainable use of wooden.
The Convention of the Events (COP) beneath the UNFCCC has advanced right into a vital platform the place subnational governments actively affect world local weather insurance policies by means of paradiplomacy. Regardless of missing formal illustration, subnational governments play an important position on the Convention of the Events (COP), actively partaking within the evolving world local weather governance framework. By partaking through intra-state and extra-state routes, areas and cities assist bridge the hole between native wants and world commitments, aligning grassroots innovation with worldwide methods. These actions improve local weather governance by amplifying various views, fostering extra inclusive options, and making certain native realities inform world selections throughout the COP.
Contributions from regional and native authorities enrich the worldwide dialogue, fostering extra consultant decision-making processes. Furthermore, showcasing native successes at COP encourages the replication of efficient methods, stimulates partnerships, and strengthens collective ambition. By integrating these views, COP turns into greater than a venue for high-level negotiations—it transforms right into a dynamic area the place collaboration throughout governance ranges accelerates the transition to sustainable and climate-resilient futures. This multidimensional strategy, combining world commitments with native motion, is indispensable for addressing the pressing and sophisticated local weather disaster challenges.
Desk 1. Paradiplomacy Devices and Modes of Interplay throughout COPs.

Acknowledgements: This work has acquired help from the Analysis Middle in Political Science, College of Minho, by means of nationwide funding from the Portuguese Basis for Science and Know-how and the Portuguese Ministry of Schooling and Science beneath grant UIDB/CPO/00758/2020.
Additional Studying on E-Worldwide Relations