Organized by Climate Group, Climate Week NYC is the world’s largest climate event. It takes place annually alongside the United Nations General Assembly and, according to the organizers, brings together more than 100,000 people across some 1,000 events spread throughout New York over the course of a week.
It isn’t a single conference with a single stage: it’s a decentralized week in which companies, governments, investors, universities and civil society organizations run their own sessions within a coordinated official program. This is the setting where much of the market decision-making, corporate commitments and climate policy coordination gains international visibility ahead of the COPs.
The 2026 edition runs from September 20 to 27, with an agenda centered on energy transition, electrification, sustainable supply chains, climate finance, and the role of the economy in accelerating — or stalling — climate progress.
Official website: https://www.climateweeknyc.org/