About 100 of the world’s largest cities will gather in Rio de Janeiro, for the C40 World Mayors Summit from Monday, the 3rd -05th November 2025.
They represent over 900 million people and almost half the global GDP.
Mayors are expected to discuss the initial plan to create 50 million good green jobs, made at the 2022 C40 World Mayors Summit in Buenos Aires.
Mayor of London and Co-Chair of C40 Cities, Sadiq Khan, said “helping to create good, well-paid green jobs is one of the most powerful things we can do to build a fairer, greener and more resilient future. I’m proud that C40 cities are turning ambition into action, proving that climate leadership at the city level delivers real results, especially for our most vulnerable communities.”
He also said “as we look ahead to COP30, we must build on this momentum. Cities are leading the way, but we can’t do it alone. We need national governments and financial institutions to step up in the same way cities have and invest in the skills and jobs that will help to power a sustainable transition for all.”
A report, shared ahead of the Summit, titled ‘Global Good Green Jobs in C40 Cities’ developed by C40 Cities in partnership with Circle Economy, tracks green employment across 81 global megacities.
Findings confirm that city-led climate action is contributing to increased economic opportunities by creating jobs for residents.
More than 10% of all employment in these cities is now green, with mayors accelerating investments in waste management, which is providing 80% of jobs in the sector, transport (32%) green jobs, driven by public transit expansion and electrification, construction (22%) green jobs, fuelled by building decarbonisation, and energy (28%).
Picture: IndustriAll Global Union