Multiply your impact through the Decisive Decade Challenge. Donate Now

Our Work > Carbon Free Cities & States

Carbon Free Cities & States

In the US, cities and states are at the forefront of climate change risk and opportunity.

And while many are making climate commitments, they need strategic, cost-effective solutions and the technical assistance to bring those intentions to reality. Internationally, regions and countries are looking for a credible, economically viable path to full climate-neutrality. RMI is working on all levels – domestically, internationally, and with subnational actors – to tackle climate change and deliver economic, health, and resiliency opportunities to all global citizens.


America’s Pledge

America’s Pledge, an initiative of former New York City Mayor Michael R. Bloomberg and California Governor Edmund G. Brown, Jr., works to analyze, catalyze, and showcase how climate action led by states, cities, and businesses is driving the United States together toward a low-carbon future. Rocky Mountain Institute has served as co-lead of the America’s Pledge research program.

Learn More
Urban Mobility Lab

The Urban Mobility Lab is a platform that supports a replicable process to transform the way goods and people move in Indian cities by identifying, integrating, implementing, and scaling cost-effective and clean pilot projects.

Learn More
Residential Energy+

We aim to unlock U.S. homeowner investment in energy efficiency and renewable energy to create better homes for our families, our pocketbooks, and the environment, preventing 23 million metric tons of carbon emissions and improving quality of life.

Learn More
City Renewables Accelerator

RMI and World Resources Institute are working together to accelerate opportunities for winners of the American Cities Climate Challenge, an initiative sponsored by Bloomberg Philanthropies, Urban Sustainability Directors Network members, and other U.S. cities to implement high-impact, near-term renewable energy projects.

Learn More


For more than 35 years, RMI has focused on practical climate change solutions that can stimulate growth, rather than be at odds with it.

Because we work across multiple energy sectors we can deliver a holistic suite of services to cities, including cross-cutting research and analysis, facilitation of diverse stakeholders, and access to industry experts throughout our vast network. Our strategy is to work with cohorts of cities and focus on a limited number of near-term, high impact activities that can be launched quickly with concrete results.

Interested in learning more or joining a cohort? Email us at cities@rmi.org

New Mexico and the Clean Energy Transition