Bloomberg at London
Climate Action Week 2026
June 20 – 28, 2026 | London, UK
Bloomberg L.P. and Bloomberg Philanthropies will help anchor major convenings and events across London Climate Action Week 2026. Delivered in partnership with the Mayor of London, the City of London Corporation, London Climate Action Week organizers, and leading international partners, these efforts reinforce Bloomberg’s longstanding commitment to advancing climate progress in London and globally.
Across the week, Bloomberg-supported events will bring together heads of state, ministers, mayors, governors, business executives, investors, philanthropies, and climate leaders from around the world, with a focus on energy transition, sustainable finance, local leadership, climate innovation, and international cooperation.
Now in its eighth year, London Climate Action Week is Europe’s largest city-wide climate gathering, bringing together nearly 50,000 participants across more than 700 events. The week serves as a key global platform between annual UN Climate Conferences – helping sustain momentum, strengthen partnerships, and support collaboration across sectors and geographies ahead of COP31.
Major Convenings:
Energy Transition, Climate Innovation, and Local Leadership
June 23, 2026 | Guildhall, London
June 23 will serve as the centerpiece of Bloomberg’s engagement during the week, bringing together a series of major convenings focused on the global energy transition, climate innovation, and local climate action at Guildhall in the heart of London’s Square Mile.
Special Address from United Nations Secretary-General António Guterres
United Nations Secretary-General António Guterres will deliver a landmark address on the global response to the climate and energy crises in one of the final major climate speeches of his term as Secretary-General. Hosted by Mike Bloomberg in his capacity as the Secretary-General’s Special Envoy, the address will focus on accelerating the clean energy transition, strengthening energy security, advancing resilience and adaptation, and reinforcing international cooperation amid a world in flux.
Earthshot Prize Impact Assembly
The Earthshot Prize and Bloomberg Philanthropies will host the Earthshot Prize Impact Assembly, bringing together Earthshot Finalists and Winners for a series of major announcements alongside investors, philanthropies, business executives, and public-sector leaders focused on scaling the impact of innovative environmental solutions.
Local Climate Action Summit
Bloomberg Philanthropies will power the Local Climate Action Summit in partnership with C40 Cities, the Global Covenant of Mayors for Climate and Energy, Breathe Cities, the Under2 Coalition, and others. Building on the Local Climate Action Summits hosted at COP28 and COP30, the convening will bring together mayors and governors from around the world to strengthen collaboration among local, national, and international leaders and highlight the increasingly influential role cities and states are playing in advancing global climate and energy priorities.
Additional Engagements Across London Climate Action Week:
Throughout the week, Bloomberg-supported events will bring together leaders from government, business, finance, philanthropy, and civil society to advance climate action, accelerate investment, and strengthen international collaboration.
Key engagements include:
- IEA Global Energy and Climate Ministerial: The International Energy Agency (IEA) and the COP31 Presidency will also convene their second High-Level Energy Transition Dialogue on 23 June at Bloomberg’s European Headquarters in London, bringing together ministers and senior leaders from government, industry, and international organizations around the world to advance energy priorities ahead of COP31 in Antalya.
- Climate Innovation Forum: The opening flagship event of the week, hosted by Climate Action in partnership with Bloomberg in Guildhall, convening 2500 leaders from business, policy and finance to scale solutions and accelerate implementation. It includes the official diplomatic opening of London Climate Action Week 2026 with multiple stages, roundtables and partner events.
- UN Environment Programme Finance Initiative Global Roundtable: One of the UN’s largest sustainable finance gatherings, the convening will explore this year’s theme, “From Risk to Resilience: Financing the Future,” and how financial institutions can help mobilize investment, strengthen resilience, and support sustainable growth amid rising global challenges.
- COP30 to COP31 Leadership Dialogue: Co-hosted by UNEP FI, ANBIMA, CNseg, and FEBRABAN, and held in partnership with PRI and GFANZ, the dialogue will focus on scaling finance and insurance solutions for mitigation, adaptation, resilience, and loss and damage protection throughout the COP30–COP31 cycle.
- Türkiye Energy Transition Investment Forum: Hosted alongside the Investment and Finance Office of the Presidency of the Republic of Türkiye, Bloomberg, and Energy Shift Capital, the Forum will bring together institutional investors, family offices, and energy companies to focus on Türkiye’s growing role as a powerhouse for investment. The event will highlight opportunities to connect European capital markets with emerging opportunities ahead of COP31, which will take place in Antalya.
- Future Streets Forum: Co-hosted by Bloomberg Associates, the Mayor of London, and The Crown Estate, the Future Streets Forum will bring together leading voices in urban design, transport, property, and placemaking to explore how streets can drive economic growth, social connection, and environmental progress across cities worldwide
- Opportunity Summit: A flagship, solutions-focused event hosted by Climate Group in partnership with the Mayor of London, the Opportunity Summit will convene senior leaders from business, government, and civil society to advance Europe’s next phase of climate-aligned growth and clean energy competitiveness.
- Net Zero Delivery Summit: Hosted by the City of London Corporation, the Summit will bring together global climate and finance leaders to discuss ways to mobilize investment at scale and address the multi-trillion-dollar financing gap required to meet global climate and energy goals.
Media:
Announcements:
Press Release: Bloomberg to Anchor Major Climate, Energy, and Finance Gatherings During London Climate Action Week (June 4, 2026)
Contact:
Email pressinfo@bloomberg.org