For one week in September, more than 1,500 events and 120,000+ participants filled New York City with one clear message: the economic case for climate action has been made, and now it’s time to act on it.
Our official Climate Week NYC 2026 report brings together the numbers, insights and standout moments from the week, and what they mean for the year ahead.
What’s inside the report:
⭕ Headline numbers from across the week
⭕ Highlights from the Opening Ceremony and The Hub Live
⭕ Insights from speakers including The Hon Anthony Albanese MP, Prime Minister of Australia and The Rt Hon Ed Miliband MP, Secretary of State for Foreign, Commonwealth and Development Affairs, UK
⭕ Key outcomes from our leadership roundtables
⭕Highlights and announcements from the Events Program
“Looking back on this Climate Week NYC, I’d add a fourth word to it: courage." - Helen Clarkson, OBE, CEO, Climate Group