The Climate Mayors Economy is strong—and its progress is measurable. In partnership with Greenline Insights, this first-of-its-kind study defines the Climate Mayors Economy as the collective GDP and fuel consumption of Climate Mayors member cities. The report finds that Climate Mayors members are growing their economies while reducing fossil fuel use, translating into household savings. Maintaining the pace of progress could save households $38.4 billion over the next decade.

Climate Mayors announced the winners of the Climate Mayors Stories of Impact Challenge at their annual Leadership Forum held during New York Climate Week, highlighting how cities across the country are delivering real, tangible climate solutions that lower costs, strengthen communities, and improve quality of life.

The Stories of Impact Challenge is part of Climate Mayors’ broader effort to equip local leaders with tools to communicate authentically and effectively in today’s digital landscape.

New U.S. Climate Alliance and Climate Mayors partnership counters ongoing federal retreat, advances key climate solutions across America.

As the U.S. federal government continues its retreat from global climate efforts, mayors and governors representing America’s top state- and city-led climate action coalitions — the Climate Mayors and U.S. Climate Alliance — came together today at Climate Week NYC to announce a new joint partnership that supercharges non-federal climate collaboration, demonstrating the strength and durability of American climate leadership.

Climate Mayors Unscripted: Climate Conversations with Mayors is your front-row seat to the trailblazers tackling climate change in America’s cities.

Hosted by Climate Mayors Chair, Lauren McLean, this dynamic podcast series brings together mayors from across the nation for candid, 30-minute conversations that go beyond the headlines. Each episode uncovers bold, practical climate solutions that are transforming communities—highlighting the creativity, grit, and collaboration powering real change.

WASHINGTON, DC.—“Cities across the country are relieved that Congress avoided a shutdown and kept transportation programs running through the extension of the Surface Transportation Bill, but this short‑term fix still leaves a serious gap by letting funding for several key infrastructure programs lapse in what amounts to roughly a 25 percent cut in the investments that keep people moving safely and affordably,” said Climate Mayors Executive Director Kate Wright.

As extreme heat continues to pose growing risks to communities across the United States, this toolkit is supporting city leaders in protecting residents and strengthening local resilience. Climate Mayors partnered with the Hazelwood Network and Switch 5 to ask people living in Arizona, Florida, Wisconsin, Oregon, and Washington State to tell us how they’re experiencing extreme heat. What were the top three concerns identified by residents? Click to find out.

Climate Mayors new social media ‘Playbook’ is a best-in-class resource to help mayors communicate clearly with confidence and creativity.

Today’s residents aren’t waiting for press releases or official statements: they’re turning to Instagram, TikTok, and YouTube to understand how the climate is shaping their lives. The Playbook makes use of platform-native storytelling to equip mayors with the tools to thrive in this influencer-led, social media moment.

With nearly 3,000 new data centers under construction or planned in the U.S., these issue briefs show key actions that mayors and cities can take to set clear expectations around air quality, electricity and water, particularly in communities already facing environmental burdens. These guides include case studies from local governments who have implemented policies in these key areas.