23 reviewers. 11 organizations. Over 400 expert comments. The GCoM alliance's review of the IPCC Special Report on Climate Change & Cities is in! Co-chaired with UN-Habitat, ICLEI & the European Commission's JRC, the review integrated perspectives from city networks & supporting partners worldwide.

A huge 89% majority of global people [56% even in the United States] want stronger action to fight the #ClimateCrisis, but mistakenly believe they’re in a minority. People want action. Smart cities are taking action. Nations should support city action. #ActionStartsHere @mayors4climate.bsky.social

The future of urban climate action will converge in Nairobi in June 2026 & we want you to be part of it! GCoM & @un-habitat.bsky.social announce that the call for session proposals & registration for the 2026 Innovate4Cities Conference is OPEN. Submit your proposal 👉https://events.unhabitat.org/

Belém 🇧🇷 is taking a major step toward a climate-resilient future with new Gap Fund support for nature-based solutions! 🔛 With this technical assistance, the city can strengthen institutional capacity across departments and jurisdictions. Read more! 👉https://tinyurl.com/56z6r59h

🔴LIVE from #COP30 at 14:00 BRT:💡How can SMEs cut energy use without upfront costs? Energy Efficiency as a Service can save money, reduce emissions, and scale clean technologies. Co-organized by GCoM & @wedonthavetime.bsky.social. 👇 https://www.youtube.com/live/CD-TfPp4G-o?si=7ivkEkwHnUmPCB0R

🔴 GCoM streaming live from #CoP30 Belém with @wedonthavetime.bsky.social This episode looks at how EU LIFE and Horizon innovations, from digital twins to deep retrofits, transform the built urban environment and cut waste. Join now 👉 https://www.youtube.com/live/951_Hh4wCpU?si=tHtWL761dFy739uw

💬 "At #COP30, cities will stand as proof that the green agenda is both possible and profitable." - Teresa Ribera, European Commission EVP & GCoM Co-Chair. At #WMS25 in Rio, leaders from 🇧🇷🇨🇱🇦🇷 showcased how ambition becomes action. @teresaribera.ec.europa.eu

🇪🇺 Welcome EU! 🎉 The European Union has formally endorsed #CHAMP, reinforcing that cities and regions are indispensable for delivering the Paris Agreement. Read more here! https://tinyurl.com/55tuetzj

GCoM at the World Mayors Summit - and what a session it was! Cities from 🇧🇷 🇨🇱 🇦🇷 shared powerful stories of climate action & collaboration. We also launched the GCoM 2025 Impact Report, celebrating significant progress towards creating resilient, low-carbon urban environments.

🆕Today at the Local Leaders Forum in Rio 🇧🇷, GCoM launched "The Urban Advantage", our 2025 Impact Report, showcasing what local ambition can achieve when backed by multilevel governance. Cities hold the key, if we empower them. Find out more: https://www.globalcovenantofmayors.org/impact2025/

🔛Today, GCoM is proud to be part of the COP30 Local Leaders Forum in Rio 🇧🇷 - co-hosted by Bloomberg Philanthropies & the COP30 Brazil Presidency - joining thousands of mayors & local leaders to connect local action to global outcomes. 🔴https://www.c40.org/events/c40-world-mayors-summit-2025/

On #WorldCitiesDay, we are excited to officially launch GCoM's presence on Bluesky! 🚀 Cities are taking the lead on #ClimateAction, delivering tangible results through innovative financing and sustainable infrastructure. Find out how GCoM empowers them to do more! 👉https://tinyurl.com/yj6xzj6m