September 20, 2025
This year’s Climate Week NYC will be the biggest yet in its 16-year history, with a record-breaking number of events, unprecedented levels of government participation, and the largest lineup of corporate partners to date.
Taking place from September 21-28 and hosted by Climate Group, Climate Week NYC will see over 1000 official events registered across town, compared to last year’s 900. They are organized by hundreds of organizations, businesses and governments, making it the most significant international climate gathering outside of COP.
The event comes at a critical moment for global climate action and signifies the determination of many governments, businesses and civil society to Power On, with over 100,000 people expected to join in person and thousands joining online.
Confirmed government figures include:
- Ursula von der Leyen, President of the European Commission
- H.E. Dr. William Ruto, President of Kenya
- Hon. Philip Davis, Prime Minister and Minister of Finance of The Bahamas
- H.E. Gaston Browne, Prime Minister of Antigua and Barbuda
- Hon. Chris Bowen MP, Australia’s Minister for Climate Change and Energy
- Hon. Ralph Regenvanu, Minister of Climate Change for the Republic of Vanuatu
- Hon. Lars Aagaard, Denmark’s Minister for Climate, Energy and Utilities
- Rob Bonta, California Attorney General
- Doreen Harris, President and CEO of the New York State Energy Research and Development Authority
They will be joined by dozens of influential voices including:
- Simon Stiell, Executive Secretary, UN Framework Convention on Climate Change (UNFCCC)
- Damilola Ogunbiyi, CEO of Sustainable Energy for All, Special Representative of the UN Secretary-General for Sustainable Energy for All and Co-Chair of UN-Energy
- Ana Toni, Chief Executive Officer, COP30 Climate Change Conference
- Yvonne Aki-Sawyerr, Mayor of Freetown
- Mario Cordero, Chief Executive Officer of the Port of Long Beach, California
- Jane Fonda, Actor and Activist
- Mark Ruffalo, Actor and Activist
- Adam Gardner, Guster Frontman and Founder of Reverb
- Robbie Fowler, Liverpool Football Legend
Helen Clarkson, CEO of Climate Group, said: “This is a critical year for climate action. It’s inspiring to see businesses, governments, and the wider climate community stepping up to show the world that global climate action continues. Our theme this year is Power On, because we need to stay focused, ambitious, and keep delivering progress. New York City has really lived up to that spirit this year and it’s shaping up to be the most impactful Climate Week NYC we’ve ever held.”
The world is changing at an astonishing speed. Shifting geopolitical realities are reshaping trade and supply chains, while energy security, competitiveness, AI and innovation are topping the political and business agendas.
To tackle these realities and celebrate what’s already been achieved, Climate Week NYC, which is held alongside the UN General Assembly, brings together heads of government, ministers, business leaders, activists to push for climate progress, decarbonize energy systems, create thriving job markets, and a clean future for the next generations.
Highlights for 2025 include:
- Over 1000 events taking place across New York City throughout the week: From high-level closed door government sessions to public-facing installations and events to engage millions of New Yorkers and visitors to the city. See full event listings.
- AY’s Road to 1000 powered by Battery Tour: AY Young, UN Young Leader for the SDGs, will perform live in Times Square alongside special guests Andrew James and Mimi Nichole in a clean-energy powered concert kicking off New York Climate Week Saturday September 20.
- Formula-E Race Car: Fortescue’s high-performance battery and charging technology will be on show throughout the week as part of its Real Zero project to decarbonize heavy industry environments.
- Climate Film Festival: Join New York City’s premiere event dedicated to visionary climate storytelling, returning for its second year. September 19-22.
- Major announcements by businesses, governments and civil society organizations to continue momentum for global climate action.
Donny Simmons, Group President, Americas, of Trane Technologies, Climate Week NYC’s Headline Partner, said: “We’re thrilled to be part of this year’s Climate Week NYC as a key partner in what’s shaping up to be the biggest edition ever. It’s fantastic to see the global climate community come together to spark new partnerships and push forward the bold action we all need. At Trane Technologies, we see this as a chance to show what’s possible when business, governments, and civil society work together to create impact at scale and accelerate progress towards a more sustainable future.”
