Global Covenant of Mayors
for Climate & Energy
The largest global alliance for city climate leadership across the globe.
14140
CITIES
1.329154326 BN
PEOPLE
24 BN
TONS CO2 E BY 2030
100+
GLOBAL PARTNERS
The Global Covenant of Mayors is partnering with the Smart City Expo World Congress in Barcelona, 3-5 November 2026, to advance city-business solutions through the City-Business Climate Alliance (CBCA), the Business Matchmaking initiative, and the Urban Transitions Mission (UTM). GCoM will be showcasing how digital urban transformation, open-source technology, and AI can empower cities to achieve their local climate goals.
Co-hosted by the Global Covenant of Mayors and UN-Habitat, 21-24 June 2026 in Nairobi, Kenya, the 2026 Innovate4Cities Conference served as a collaborative working space at the crossroads of city climate science, policy and practice. Marking a historic first as the Conference landed on the African continent, I4C26 brought together city and national government leaders, researchers, practitioners, businesses, civil society, youth and community representatives at UN-Habitat’s headquarters.
Lacking access to affordable and reliable energy is a clear indication of deprivation in the daily lives of urban residents. Local governments are well aware of the urgency and benefits associated with tackling energy access and poverty. However, they frequently encounter significant and complex barriers that limit their ability to implement interventions or explore innovative solutions. To help local governments ensure access to affordable, reliable, and sustainable energy for all, GCoM and ARUP released the highly anticipated Unlocking Urban Energy Access and Poverty research and summary reports.
City Journey
From committing to monitoring and reporting, the City Journey is a step-by-step guide designed to support cities in bridging the gap from climate ambition to climate action delivery.
Stronger together
Cities and partners committed to the Global Covenant of Mayors for Climate & Energy share a long-term vision to combat climate change. Together, we are working towards a low-emission and climate-resilient future.
More than 14,000 cities stand ready to partner with national and international institutions to tackle both climate and economic crises through local initiatives, innovative financing models, and sustainable infrastructure.
Latest News
October 20, 2026
The Global Covenant of Mayors for Climate & Energy (GCoM) and UN-Habitat invite expressions of interest to host the 2028 Innovate4Cities Conference (I4C28) by 4 November 2026. Cities and local governments are where the impacts of climate change are most acutely felt – and the epicenters of commitments turned into action. But cities cannot act … read more
October 12, 2026
World’s Largest City Climate Alliance Appoints Mayor V.K. Minimol, Mayor Claudio Castro, and Mayor Aleksandra Dulkiewicz to Expand Regional Leadership Across South Asia, Latin America, and Europe BRUSSELS, BELGIUM (October 12, 2026) – Today, the Global Covenant of Mayors for Climate and Energy (GCoM), the largest global alliance for city climate leadership built upon the … read more
September 25, 2026
New York (September 23, 2026) — Vice President Sara Aagesen today announced Spain’s endorsement of the Coalition for High Ambition Multilevel Partnerships (CHAMP) for Climate Action during Climate Week NYC, strengthening the growing coalition of national governments working with cities and regions to accelerate climate action. With Spain’s endorsement, CHAMP now brings together 78 countries … read more
GCoM Committed Cities Supported by an Alliance of Partners
