Ramboll at C40 World Mayors Summit and COP30: Meet us there!

C40 World Mayors Summit and COP30 Local Leaders Forum

When: Monday November 3 - Wednesday November 5

Where: Rio de Janeiro, Brazil

The C40 World Mayors Summit 2025, co-hosted by C40 Cities Co-Chair and Mayor of London Sadiq Khan and the Mayor of Rio de Janeiro Eduardo Paes, brings together mayors from nearly 100 major cities, alongside business leaders, philanthropists, investors, academia, and civil society.  

The 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 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.

From Monday November 3rd to Wednesday November 5th, the Ramboll Foundation and Ramboll Group will participate in multiple events throughout C40 World Mayors Summit and COP30 Local Leaders Forum on the topics of:

• Scaling Climate Solutions
• Resilient Cities & Resilient Communities
• Mobilizing Finance for Urban Nature Projects
• CSR: Turning ambition into action
• Flexible, core funding for climate action

COP30

When: Monday November 10 – Friday November 21

Where: Belém, Brazil

Meet us at the 30th UN climate conference Belém, Brazil. The event will bring together world leaders, scientists, non-governmental organizations, businesses and civil society to discuss priority actions to tackle climate change. COP30 will focus on the efforts needed to limit the global temperature increase to 1.5°C, the presentation of new national action plans (NDCs) and the progress on the finance pledges made at COP29.

Ramboll will host and join multiple events at COP30, with a special focus on energy and resilient cities.

Gender and Generations perspectives on making the Green Transition Just

When: Tuesday November 11 – 13:00 – 14:00

Where: Danish Pavillion – Blue Zone, PV-D127

Host: Danish Industry

About: This panel will highlight the practical solutions and approaches that have been successful in giving underrepresented genders and generations a voice in climate policy decisions.

From Global Pledges to Local Action: Designing Resilient, Inclusive, and Future-Proof Cities

When: Monday November 10 - 14:00 – 14:50

Where: Danish Pavillion – Blue Zone

Host: Ramboll

About: As COP30 takes place in Belém, the need to transform global climate commitments into practical local action is more urgent than ever. The critical question becomes: what must urban leaders prioritize today to ensure that cities remain resilient, inclusive, and future-proof tomorrow? This session brings together leading voices in urban transformation to explore how cities can turn challenges into opportunities for inclusive and sustainable growth. Themes for discussion are the social and economic value of urban placemaking and future urban weather: tackling water and heat challenges through practical and investible nature-based solutions.

Towards a City in Nature Panel

When: Tuesday November 11 - 15:30 – 17:00

Where: Singapore Pavilion – Blue Zone

Host: Singapore Centre for Liveable Cities

About: At the Singapore Pavilion Cities Day, hosted by the Singapore Centre for Liveable Cities, we'll discuss the wide-ranging benefits of nature and biodiversity for cities, such as providing ecosystem services, strengthening resilience and enhancing well-being. Key questions are: how can we better assess the multifunctional benefits of nature-based solutions? How can cities integrate and enhance biodiversity with urban development?

From Grid to Building: Reimagining Infrastructure for a Sustainable Digital Future

When: Tuesday November 11 - 15:30–16:30

Where: World Climate Impact Hub (Blue Zone)

Host: World Climate Foundation, with Siemens Smart Infrastructure

About: How digital innovation is reshaping infrastructure, from smarter grids to grid-interactive buildings, and how data-driven operations improve resilience, efficiency, and decarbonization at scale. We will highlight practical pathways that align with climate and development goals.

Securing tomorrow: Resilient Energy Systems for a Sustainable Future

When: Friday November 14 - 15:00 – 15:50

Where: Danish Pavillion – Blue Zone

Host: Ramboll, with Copenhagen Infrastructure Partners

About: Across all regions, we see renewable generation assets queuing for grid connections. This pressure is further amplified by the rapid expansion of data centres. To build future-ready grids that are smart, integrated, efficient, and resilient we need systems that can withstand shocks, adapt to shifting demand, and ensure equitable access to clean energy - while also securing the reliable, sustainable power that digital infrastructure like data centres depend upon. In this Ramboll and Copenhagen Infrastructure Partners hosted session, we look at ways to build future-ready grids that are smart, integrated, efficient, and resilient and that can attract and mobilise investment at scale.