Running from September 21-28, Climate Week NYC is a global event hosted by The Climate Group that brings together leaders from business, technology, politics, academia, and civil society to accelerate climate action.
ICLEI will be on the ground throughout the week, amplifying the voice of local leadership on climate and sustainability. With a strong delegation of elected officials and staff, ICLEI will spotlight how cities, counties, and regions are shaping the path toward COP30 in Belém and driving the transition to a faster, fairer, and further climate future.
Local Leaders Delegation
- Katrin Stjernfeldt Jammeh, Mayor of Malmö, Sweden (ICLEI President)
- Marjorie Kauffmann, Secretary of State for Environment and Infrastructure, State of Rio Grande do Sul, Brazil (ICLEI Vice President)
- Kate Gallego, Mayor of Phoenix, AZ (ICLEI Vice President)
- Jeni Arndt, Mayor of Fort Collins, CO (USAO Board & RexCom Chair)
- Nicola Armacost, Mayor of Hastings-on-Hudson, NY (USAO Board & RexCom)
- Brigid Shea, Commissioner, Travis County, TX (USAO Board Chair)
- Ravi Bhalla, Mayor of Hoboken, NJ (USAO Board)
- Nancy Metayer Bowen, Commissioner, Coral Springs, FL (USAO Board)
ICLEI USA Staff Delegation
- Saharnaz Mirzazad, Executive Director
- Jess Grannis, Director of Programs
- Kristi Kimball, Advisor on Development
- Kale Roberts, Director of Membership & Local Diplomacy
- Anne Marie Cleary Rauker, Senior Communications Officer
- Darcie Howard, Program Associate, Development and Grantmaking
Other ICLEI Staff Attending
- Alyssa Chenault, Climate Action Manager, World Secretariat (WS)
- Bianca Cantoni, Institutional and Advocacy Coordinator, ICLEI South America (SAMS)
New York Climate Week Agenda
Saturday, September 20
Town Hall COP: Hastings-on-Hudson
A Town Hall COP hosted by the Village
Date: September 20
Host: Hastings-on-Hudson, NY
Sunday, September 21
UNGA 2025: AI for Global Progress – An Innovation Showcase
Date: September 21
Time: 1:00 – 5:30 PM ET
Host: Google
Monday, September 22
Financing for USA Adaptation Investments due to Climate Change
Date: Monday, September 22
Time: 8:30 AM – 1:00 PM ET
Host: FIASI
Location: Fordham Univ., Lowenstein Bldg (12th Fl Lounge), 113 W 60th St, NYC
Official launch of the “Road to COP” report to highlight Sweden’s ambitions ahead of COP30 in Brazil
Date: Monday, September 22
Time: 8:45 AM – 11:00 AM ET
Host: Business Sweden and Sweden’s COP Non-Negotiating Delegation
Location: Consulate General of Sweden in New York, 1 Dag Hammarskjöld Plaza, 885 2nd Ave, 40th floor, New York, NY 10017
AI x City Climate Action Hackathon Finale
Date: Monday, September 22
Time: 8:30 AM – 1:00 PM ET
Host: Co-hosted with New York Climate Exchange (Partners: IBM, New York University, UTM, Johns Hopkins)
High-Level Solutions Dialogue on Accelerating Early Warning and Extreme Heat Solutions
Date: Monday, September 22
Time: 9:00 AM – 10:30 AM ET
Host: UNSG Office
Location: Conference Room 3, United Nations Headquarters
Opening Ceremony 2025
The official launch of Climate Week NYC 2025, hosted by The Climate Group.
Date: Monday, September 22
Time: 9:00 AM ET
Host: Climate Group
High-Level Solutions Dialogue on Accelerating Adaptation Implementation and Investment
Date: Monday, September 22
Time: 11:00 AM – 1:00 PM ET
Host: UN EOSG
Location: UN Conference Room 3
UNSG NDC Local Solution Dialogue
Date: Monday, September 22
Time: TBC
Host: UN EOSG (via GCoM)
Location: UN
CHAMP Country Contact Group Convening
Date: Monday, September 22
Time: 12:00 PM – 3:00 PM ET
Host: CHAMP Support Unit (GCoM)
Location: TBD
Moving from Data to Dialogue to Doing: Leveraging the Science of Communication for Climate Action
Date: Monday, September 22
Time: 12:30 PM – 1:30 PM ET
Host: Yale
Location: 218 West 18th Street, 10th Floor, New York, NY
Municipal Investment Fund Event: Aligning Capital for Clean Energy Infrastructure
A session on financing local climate solutions through municipal investment.
Date: Monday, September 22
Time: 2:00 – 5:00 PM ET
Location: Amalgamated Bank HQ, MLK Room, 10 E 14th St, New York, NY 10003
Host: ICLEI USA and Coalition for Green Capital
Under2 Ministerial
Date: Monday, September 22
Time: 3:00 PM – 5:30 PM ET
Host: Under2
Location: The Glasshouse, 660 12th Ave, New York, NY
Confluence Philanthropy Reception
Date: Monday, September 22
Time: 8:00 PM – 10:00 PM ET
Host: Confluence Philanthropy
Location: Midtown Manhattan (near 5th Ave and 39th St, New York, NY 10001 — exact location provided prior to event)
Quebec Reception
Date: Monday, September 22
Time: 7:00 PM – 9:30 PM ET
Host: Quebec + Under2
Location: Norton Rose Fulbright
Tuesday, September 23
G20 Social Side Event at UNGA80
Date: Tuesday, September 23
Time: 8:30 AM – 11:00 AM ET
Host: UNDP + Open Society
Location: etc. venues, 601 Lexington Avenue, New York, NY 10022
Europe-U.S.-Brazil Dialogue on Climate Change
Date: Tuesday, September 23
Time: 9:00 AM – 12:00 PM ET
Host: Prof. Laurence Tubiana (European Climate Foundation) and Dr. Jonathan Pershing
Location: NRDC Office, 40 W. 20th St, Suite 11, New York, NY 10011
The Climate Group Event – U.S. Abundance Agenda
A high-level conversation on accelerating the transition to a clean energy economy.
Date: Tuesday, September 23
Time: 11:00 AM – 5:30 PM ET
Host: The Climate Group (Co-hosted by ICLEI USA)
Location: TBD
The Price of Power: Solutions for Energy Affordability
Date: Tuesday, September 23
Time: 12:00 PM – 3:00 PM ET
Host: Powerlines + Climate Mayors
Location: 208 West 30th St, Suite 801, New York, NY 10001
UNFCCC High-Level Champions
Date: Tuesday, September 23
Time: 12:00 PM – 3:00 PM ET
Host: UNFCCC MPGCA – COP30 Presidency
Location: The Glass House
Roundtable: How circular design, green public procurement, and system-wide innovation are embedded into corporate strategies to drive sustainable infrastructure
Date: Tuesday, September 23
Time: 1:30 PM – 4:00 PM ET
Host: Business Sweden and Mattias Frumerie, Climate Ambassador of Sweden
Location: TBD
Rethinking Food Waste: Policy, Practice, and Progress
Date: Tuesday, September 23
Time: 2:30 PM – 5:30 PM ET
Host: NRDC
Location: NRDC, 40 West 20th Street, 11th Floor, New York, NY 10011
Cocktail Reception for EGA Members
Date: Tuesday, September 23
Time: 3:00 PM – 5:00 PM ET
Host: Environmental Grantmakers Association
Location: NoMAD, NYC
Climate Group Reception for American Innovation
Date: Tuesday, September 23
Time: 5:30 PM – 8:00 PM ET
Host: The Climate Group
Location: To be announced
ICLEI Delegate Dinner
Date: Tuesday, September 23
Time: 7:00 PM – 9:00 PM ET
Host: ICLEI USA
Location: TBD
Wednesday, September 24
InnSure Workshop
Date: Wednesday, September 24
Time: 9:00 AM – 4:30 PM ET
Host: InnSure
Location: TBD
Who Will Lead? with Al Gore at Climate Week NYC
Date: Wednesday, September 24
Time: 8:00 AM – 9:45 AM ET
Host: Climate Reality
Location: Marriott Marquis, 1535 Broadway, New York, NY 10036
SDSN Global Commission Plenary Meeting – Hybrid
Date: Wednesday, September 24
Time: 8:30 AM – 10:00 AM ET
Host: Commissioner Adam Brenneman and Milbank LLP
Location: 55 Hudson Yards, New York, NY 10001-2163
Climate Mayors Meeting
Date: Wednesday, September 24
Time: 9:00 AM – 1:00 PM ET
Host: Climate Mayors
Location: Roosevelt House Public Policy Institute at Hunter College, 47-49 East 65th St, New York, NY 10065
Empowering Local Climate Action through Climate Tech Solutions
Exploring innovation at the intersection of technology and climate action.
Date: Wednesday, September 24
Time: 11:00 AM – 1:00 PM ET
Host: ICLEI USA, ClimateView, and EY
Location: Ernst & Young Offices
New Paradigm of Regulatory Ingenuity
Date: Wednesday, September 24
Time: 11:00 AM – 12:15 PM (Lunch: 12:15 PM – 1:15 PM) ET
Host: FAS, Climate Group, and Confluence Philanthropy
Location: Covington and Burling LLP, 620 8th Ave, New York, NY 10018
Z Zurich Foundation’s Urban Resilience Forum: Catalyzing Partnerships for Scalable, Community-Driven Solutions
Date: Wednesday, September 24
Time: 11:30 AM – 1:00 PM ET
Host: Z Zurich Foundation
Location: One World Trade Center
Federation of American Scientists (FAS) Funder Roundtable on Barriers to Clean Energy Deployment
Date: Wednesday, September 24
Time: 1:00 PM – 2:30 PM ET
Host: Federation of American Scientists
Location: Covington
Big Tent of Climate Action: City Networks, Industry, Utilities
Discussion with thought leaders on subnational leadership, followed by a networking happy hour.
Date: Wednesday, September 24
Time: 3:00 PM – 5:00 PM ET
Host: Co-hosted by ICLEI USA, National League of Cities, and National Association of Counties
Location: Amalgamated Bank, 10 E 14th St, New York, NY 10003
UNSG Climate Summit
Date: Wednesday, September 24
Time: 2:00 PM – 6:00 PM ET
Host: UN Secretary General’s Office
Location: TBD
High-Level Convening of City Climate Networks
Date: Wednesday, September 24
Time: 4:30 PM – 6:00 PM ET
Host: Urban Climate Change Research Network (UCCRN) + GCoM
Location: Roosevelt House Public Policy Institute at Hunter College, 47-49 East 65th St, New York, NY
We Don’t Have Time Reception
Date: Wednesday, September 24
Time: 6:00 PM – 9:00 PM ET
Host: We Don’t Have Time
Location: TBD
Multilevel Action and CHAMP Working Group Reception
Date: Wednesday, September 24
Time: 6:30 PM – 7:30 PM ET
Host: Under2 Coalition, ICLEI, C40, and GCoM on behalf of LGMA Constituency and CHAMP Working Group
Location: WeWork, 575 Lexington Ave, New York, NY 10022
Thursday, September 25
National League of Cities: Nature-based Solutions for Climate Resilience to Wildfires and Extreme Heat
Date: Thursday, September 25
Time: 9:30 AM – 11:30 AM
Host: National League of Cities
Location: The New School, 72 5th Ave, New York, NY 10011
World Climate Foundation Biodiversity & Climate Summit
Date: Thursday, September 25
Time: 8:00 AM – 4:00 PM
Host: World Climate Foundation
Location: Civic Hall, 124 E 14th St, New York, NY 10003
Climate Mobility Summit. Speaking Session VI: “Cities on the Frontlines: The Ocean Rise and Coastal Resilience Coalition”
Date: Thursday, September 25
Time: 12:00 PM – 1:30 PM
Host: GCCM
Location: Volvo Hall, Scandinavia House, 58 Park Avenue
Electric Innovation Forum
Date: Thursday, September 25
Time: 12:30 PM – 4:30 PM
Host: WSP
Location: WSP, ONE Pennsylvania Plaza, New York, NY 10119
Happy Hour: Resilient Cities Catalyst
Date: Thursday, September 25
Time: 5:00 PM – 7:00 PM
Host: RCC
Location: 50 Broad St, Suite 703, New York, NY 10004
Smart Cities, Shared Futures: Bridging Asia and the World
Date: Thursday, September 25
Time: TBD
Host: Yokohama Event
Location: TBD
Friday, September 26
UN Foundation SDGs Event
Date: Friday, September 26
Time: 9:00 AM – 11:00 AM
Host: UN Foundation
Location: TBD
Net Impact and EY’s Climate Week Wine Down
Date: Friday, September 26
Time: 3:00 PM – 6:30 PM
Host: EY
Location: TBD
And More at Climate Week NYC 2025
Beyond our official sessions, ICLEI USA staff will be engaging throughout the week at a wide range of Climate Week NYC events, connecting with partners, amplifying local government leadership, and bringing insights back to our members. Follow us on social media for highlights from these additional events.