C40 Mayors Summit Gains Momentum: C40 Makes Major Announcements on Expansion, Competition & Engagement

Today at the C40 Mayors Summit in Johannesburg, the C40 made several major announcements that continue to demonstrate why cities are leading the way on global climate change.

In addition to the release of the landmark Climate Action in Megacities 2.0 report this morning, C40 also made major announcements including the addition of African cities to its membership, the launch of a new programme providing on-the-ground support to cities, and the issuance of a strong statement to the global community about the role of cities in tackling climate change.

The expansion of C40 membership to include three additional African cities – Dar es Salaam, Nairobi and Cape Town – bring the global number of C40 cities to 66.

“Although the African continent faces disproportionate impacts from climate change, we are no less dedicated to contributing to solutions,” said C40 Summit host, Johannesburg Executive Mayor Mpho Parks Tau. “African cities are growing at a tremendous rate and as mayors, it is our duty to ensure the long-term sustainability of our communities. That’s why African mayors are stepping up to join the C40.”

Another important announcement at the Summit was that more than 35 C40 mayors have signed on to a letter that C40 Chair and Mayor of Rio de Janeiro Eduardo Paes presented to Dr. Joan Clos, Executive Director of UN-Habitat. The letter urged the UN’s Open Working Group on Sustainable Development Goals to include a specific urban goal among the overall global sustainable development goals.

“As a global mayor, and one whose city will forever be linked to the global sustainable development agenda, I cannot stress enough the fact that without an urban goal the Sustainable Development Goals will be incomplete,” said Mayor Paes.

To read the letter from Mayor Paes, click here.


The C40 Mayors Summit also marked the launch of a City Directors programme, which will provide selected cities dedicated, on-the-ground staff chosen through a competitive application process. This significant investment by the organisation in member cities will increase the ability of cities to share best practices through participation in C40 networks.

Finally, UNFCCC Executive Secretary Christiana Figueres’ participation in the Summit as well as Mayor Bloomberg’s recent appointment as United Nations Special Envoy for Cities and Climate Change underscores the critical role cities are now playing in the international dialogue on climate change.

To read the full release with these announcements, click here.