C40 World Mayors Summit 2025
Date: 3 to 5 November 2025
Location: Rio de Janeiro, Brazil
An EBRD delegation will attend the C40 World Mayors Summit 2025, co-hosted by the Mayor of London and C40 Cities Co-Chair Sadiq Khan and the Mayor of Rio de Janeiro Eduardo Paes, brings together mayors from nearly 100 C40 cities, alongside business leaders, philanthropists, investors, academics, and civil society.
This year’s Summit will kick off the COP30 Local Leaders Forum, co-hosted by Bloomberg Philanthropies and the COP30 Presidency. The Forum puts local leadership at the heart of global negotiations, showcasing scalable city-led solutions and ensuring local priorities shape the outcomes of COP30.
Taking place from 3-5 November in Rio de Janeiro, just days before COP30 in Belém, the Summit marks a critical moment for city-led climate action. Building on two decades of C40 Cities leadership, it will showcase innovative solutions from cities worldwide, demonstrate what’s possible through delivery-focused collaboration, and build momentum ahead of COP30.
Gianpiero Nacci, Managing Director, Climate Strategy and Delivery at the EBRD will participate in a number of high-level panels and closed meetings including the panel “ Climate Finance: Unlocking Urban Investment” and the “Africa Regional Convening” roundtable, moderated by Mayor Yvonne Aki Sawyerr of Freetown on 4 November as well as a closed door CHAMP partners event.
In addition to the main events, EBRD will have representation at the GEF Global Platform for Sustainable Cities event where Lin O’Grady, Head of EBRD Green Cities, will speak during the Mayors Roundtable and Urban Nature Forum at the panel “Unlocking Financing for Resilient and Green Urban Infrastructure.”
Christina Teokari, Principal, Climate Strategy and Delivery, EBRD will join and speak at the Urban Transitions Mission Global Innovation Summit 2025.