States
United for
Climate Action

The U.S. Climate Alliance is a bipartisan coalition of 24 governors securing America’s net-zero future by advancing state-led, high-impact climate action.

The U.S. Climate Alliance is a bipartisan coalition of 24 governors securing America’s net-zero future by advancing state-led, high-impact climate action.
54% of the U.S. Population
57% of the U.S. Economy

Alliance Members

Alliance members are committed to achieving the goals of the Paris Agreement.

Select a member to learn more about their climate action and leadership.

Latest From The Alliance

Press Release | 2025

Today, America Is All In, Climate Mayors, and the U.S. Climate Alliance announced that a U.S. delegation of more than 100 local leaders will participate in the U.N. Climate Change Conference (COP30), the COP30 Local Leaders Forum, and the C40 World Mayors Summit in November.
Governors Evers and Lujan Grisham, Mayor Gallego, and Gina McCarthy to Lead U.S. Delegation Of 100+ Local Leaders to Global Climate Convenings in Brazil

At the Local Leaders Forum in Rio de Janeiro and COP30 in Belem, a delegation organized by America Is All In, Climate Mayors, and the U.S. Climate Alliance will showcase how cities and states are sustaining America’s climate progress and recommitting to international cooperation.

Press Release | 2025

The governors of Wisconsin and Hawaiʻi have joined the Affordable Clean Cars Coalition — a growing partnership among governors to help sustain America’s transition to cleaner and more affordable cars, support U.S. automotive manufacturers and workers, and safeguard states’ clean air authority.
Wisconsin and Hawaiʻi Governors Join Affordable Clean Cars Coalition

13 Governors are now collaborating to help more Americans access and afford clean cars.

Press Release | 2025

The U.S. Climate Alliance today released new analysis showing its members have collectively reduced net greenhouse gas emissions 24 percent below 2005 levels, while increasing their collective GDP by 34 percent.
U.S. Climate Alliance Convenes Top Governors at Climate Week NYC, Announces Major Leap Toward Meeting Climate Pollution Reduction Target

Alliance members have collectively reduced net greenhouse gas emissions 24 percent below 2005 levels.

Press Release | 2025

As the Trump administration announced it will withdraw the U.S. from the Paris Agreement, the co-chairs of the U.S. Climate Alliance – New York Governor Kathy Hochul and New Mexico Governor Michelle Lujan Grisham – today delivered a letter to UN Climate Change Executive Secretary Simon Stiell making it clear to the global community that climate action will continue in the U.S.
U.S. Climate Alliance to the International Community: “We Will Continue America’s Work to Achieve the Goals of the Paris Agreement”

Alliance co-chairs New York Governor Kathy Hochul and New Mexico Governor Michelle Lujan Grisham respond to the Trump administration’s withdrawal of the U.S. from the Paris Agreement.

Our Work

The Alliance Secretariat helps members accelerate high-impact climate action by providing a broad range of technical, analytical, policy, and capacity assistance and resources. Learn more about our team of climate experts, the reports and guides we publish, and the programs and initiatives we lead.

Our Work at the U.S. Climate Alliance | Annapolis Rock, Maryland

Our Work

The Alliance Secretariat helps members accelerate high-impact climate action by providing a broad range of technical, analytical, policy, and capacity assistance and resources. Learn more about our team of climate experts, the reports and guides we publish, and the programs and initiatives we lead.