2025 Forbes Sustainability Leaders Summit
On September 22, the 2025 Forbes Sustainability Leaders Summit will bring together today’s most prominent leaders from business, government, and beyond who are driving meaningful change in their industries and leading the kind of bold action this moment demands. Hear from and connect with the world’s top changemakers working to accelerate critical advancements in science, technology, and business.
Registration for the in-person Summit is by invitation-only. Learn more about the Forbes event here.
NEW YORK, NY – As world leaders gather for the UN General Assembly, NYC Climate Week, and a special UN-hosted Climate Summit, America Is All In leaders will showcase the policies, practices, and technologies that U.S. states, cities, businesses, and institutions are advancing to increase clean energy, grow jobs, lower living costs, cut fossil fuels and protect our health and safety.
America Is All In Co-Chairs, Gina McCarthy and Cleveland Mayor Justin M. Bibb, as well as a record 35+ U.S. mayors, will speak at events, roundtables, meetings, and more across Climate Week to signal the coalition’s strong commitment to advancing U.S. climate action and working with the United Nations, major economies, developing countries, and the private sector to mobilize global action. As All In prepares for COP30 and the Local Leaders Forum in Rio, Brazil, All In leaders will meet with the COP30 host country of Brazil, the European Union, South Africa, and more to discuss pathways for building a better, more resilient, and prosperous future.
WHEN:
Monday, September 22 - Wednesday, September 24
NOTABLE ATTENDEES:
- Gina McCarthy, Managing Co-Chair of America is All In, Former White House National Climate Advisor, and 13th U.S. Environmental Protection Agency Administrator
- Mayor Justin M. Bibb, Cleveland, OH, Co-Chair of America Is All In and Chair Emeritus of Climate Mayors
- Bria Scudder, Illinois Deputy Governor for Public Safety, Infrastructure, Environment and Energy State of Illinois
- Mayor Kate Gallego, Phoenix, AZ, Chair of Climate Mayors and Vice Chair of C40 Cities
- Dr. Robert D. Bullard, Founding Director Bullard Center for Environmental and Climate Justice, Texas Southern University, America Is All In Leaders Circle
- Mindy Lubber, CEO and President, Ceres
HIGHLIGHTED EVENTS
Monday, September 22
2025 Forbes Sustainability Leaders Summit
Location: Forbes on Fifth (24 5th Ave, New York, NY 10011)
Time: 11 am - 4 pm ET
Details: America Is All In leaders will discuss how cities, states, and communities are proving that ambitious climate action not only drives emissions reductions but spurs economic growth. Co-chairs will share how All In is mobilizing climate action at scale and translating local successes into broader impact — demonstrating that collaboration at every level is essential to meeting the moment.
America Is All In Speakers:
- Gina McCarthy, Managing Co-Chair of America is All In, Former White House National Climate Advisor, and 13th U.S. Environmental Protection Agency Administrator
- Mayor Justin M. Bibb, Cleveland, OH and Co-Chair of America is All In
- Dr. Robert D. Bullard, Founding Director Bullard Center for Environmental and Climate Justice, Texas Southern University
Tuesday, September 23
Building Local to Global Climate Coalitions, Powered by Communities
Location: Tishman Auditorium at the New School, 63 5th Ave, New York, NY 10003
Time: 10 am - 12 pm ET
Details: This conversation will highlight how coalitions are emerging to chart a path toward a thriving economy and healthy futures for all, at a time when environmental policy and budgets face unprecedented attacks.
America Is All In Speakers: Mayor Justin M. Bibb, Cleveland, OH and Co-Chair of America is All In
Wednesday, September 24
Climate Mayors Leadership Forum
Details: Climate Mayors will convene over 35 mayors from across the country for a closed-door discussion on lowering energy bills, building affordable and energy efficient housing, and creating safer, healthier, and more prosperous communities.
U.S. Climate Alliance: Governors Convening
Details: The Alliance will convene several member governors and other top state officials to report on the state of climate action in America and share several announcements spotlighting how they are continuing to advance impactful solutions. A portion of the meeting will be open to credentialed media. Contact press@usclimatealliance.org for further details.
Reuters Climate Frontlines: Green Money, Global Stakes
Location: Live Online
Time: 8:35 - 8:50 am ET
Details: During this live program, Axel Threlfall, Reuters’ Editor-at-Large, will interview America Is All In Co-Chair Mayor Justin M. Bibb and other local leaders on how cities around the world are balancing immediate needs for their communities with longer decarbonization goals.
America Is All In Speakers: Justin Bibb, Mayor of Cleveland, America Is All In Co-Chair
Ceres Championing the Clean Economy: Corporate Action and Protecting the Freedom to Invest
Location: Nest Climate Campus, Javits Center North, 445 11th Ave, New York, NY 10001
Time: 9:30-10:20 am ET
Details: Prominent industry and policy experts will highlight the ways U.S. businesses are prospering in the transition and make the case for championing efforts to protect the long-standing rights of businesses to make responsible investment decisions.
America Is All In Speakers: Mindy Lubber, CEO and President, Ceres
A Historic Vision: Leaders Launch Plan to Transform the Great Lakes–St. Lawrence Region into the Fresh Coast Economic Corridor
Location: Government of Québec, 1 Rockefeller Plaza, Suite 26 and on Zoom.
Time: 4 - 6 pm ET
Details: Mayors from around the Great Lakes and St. Lawrence River Region will gather to release its Economic Transformation Plan to make the region the Fresh Coast Economic Corridor and become the fastest growing region in North America over the next decade. Contact jedwards@glslcities.org for more information.
America Is All In Speakers: Justin Bibb, Mayor of Cleveland, America Is All In Co-Chair