Climate Week NYC is the largest annual climate event of its kind, bringing together over 900 events and activities across the City of New York – in person, hybrid and online. Each year, business leaders, political change makers, local decision takers and civil society representatives of all ages and backgrounds, from all over the world, gather to drive the transition, speed up progress, and champion change that is already happening.

Climate Group hosts the official program during the week that brings together the most senior international figures from business, government, civil society and the climate sector.

Climate Week NYC is being held from September 21-28, 2025. The event takes place every year in partnership with the United Nations General Assembly and is run in coordination with the United Nations and the City of New York.