Skip to main content


Congress photo

13 Apr 2023

C40 Annual Report 2022

C40 Annual Report 2022

The C40 World Mayors Summit in Buenos Aires in October 2022 was held to share bold ideas, showcase innovative solutions and stand United in Action to create a sustainable, prosperous and equitable future.

The Summit demonstrated that the best way to protect people everywhere from rising prices, polluted air and extreme weather is to invest in greener, more resilient cities, not fossil fuels. C40, led by our Chair and Mayor of London Sadiq Khan, announced the collective effort by mayors to drive the creation of 50 million good, green jobs by the end of the decade. From transforming homes, schools and workplaces so they are energy efficient to delivering state-of-the-art, integrated and accessible public transport systems, mayors are using their powers to create decent and sustainable green jobs. London, for example, has committed to double the size of the green economy to £100 billion by 2030, an ambition that will kick-start greater job growth over the next decade.

Securing more finance for Global South cities is a priority for the Chair. At the Summit, C40 also announced record investment in cities in the Global South to tackle the climate emergency. For example, the C40 Cities Finance Facility (CFF) has supported 34 projects in cities in the Global South since 2016. Thanks to this, Global South cities are projected to access over US $1 billion of finance for implementation and contribute to an overall emissions reduction of more than 2.5 million tons of polluting greenhouse gases.

C40 amplified key messages from the C40 Summit at COP27 in Sharm-el-Sheikh. C40 demonstrated that cities are taking action and reducing emissions faster than their respective national governments, with mayors, city officials and staff taking part in more than 50+ strategic events to showcase C40 city leadership. Nine C40 mayors attended COP27, including four African mayors, and 107 unique articles covered C40’s presence there. C40’s presence and engagement at COP27 was critical to achieve more support for city climate action and a seat at the table to implement the Paris Agreement. COP27 saw the launch of the first ever Presidency initiatives to support climate action (Sustainable Urban Resilience for the next generation - SURGe), public transport (Low Carbon Transport for Urban Sustainability - LOTUS) and the first ever ministerial meeting on urban climate action which included mayors. C40 is a partner to all of these initiatives.

Source: C40 Annual Report 2022

View all News