Inspiring the global community to take bold and inclusive climate action

Since the signing of the Paris Agreement in 2015, C40 mayors have made it a priority to deliver their fair share of its objectives and champion the need for urgent and bold climate action among their peers, partners and national governments. As formal observers of the COP process, C40 cities use this global platform as an opportunity to showcase their commitments to ambitious climate action and their achievements towards reaching Paris Agreement goals, and to inspire the global community to enhance their ambition and put inclusive climate action and equity at the heart of all decision-making – in line with the Global Green New Deal.

C40 cities participate in the COP negotiations, as members of the Local Governments and Municipal Authorities observers constituency (LGMA) through in-session interventions and side events, written and in-person contributions to consultation processes (such as the Talanoa Dialogue or Global Stocktake) and other campaigns initiated by the rolling Presidencies (such as the COP25 Climate Ambition Alliance and COP26 Race to Zero). The objective of this engagement is to influence the negotiated outcomes of the COP towards more ambitious climate action globally, including enhanced targets in Nationally Determined Contributions (NDCs), long-term strategies (LTS), improved integration of local government contributions in NDCs, and enhanced access to finance for local governments.

C40 is also active in the Marrakech Partnership for Global Climate Action which brings together all stakeholders who are not parties of the Paris Agreement but are essential to its implementation with the view of accelerating it through radical collaboration. C40 contributes to the annual Marrakech Partnership thematic days, Yearbook of Climate Action and Action Pathways to showcase city contributions towards the 1.5°C and resilience goals of the Paris Agreement. C40 also aims to raise awareness about the barriers to climate action, which require attention from the COP parties or innovative and collaborative solutions from civil society, businesses, investors and other stakeholders to unlock.

The next 10 years to 2030 are crucial in our fight against the climate crisis. To mark the start of the ‘Decade of Climate Action’ and to build momentum around the shift to a decarbonised economy at COP26, where governments must strengthen their contributions to the Paris Agreement, C40 Cities and partners have come together to launch the Cities Race to Zero. This global campaign will mobilise an unprecedented coalition of cities committed to setting and achieving science-based targets and implementing inclusive and resilient climate action as part of the multi-stakeholders COP26 Race to Zero.

To contact the team, please email Agathe Cavicchioli at