• Blog post

    From Rio de Janeiro to Seoul to Johannesburg, the mayors of the world's megacities are leading the way by taking climate actions locally that are collectively having a significant global impact. National and international governments and institutions are recognizing the successes cities have been able to implement, and are increasingly turning to cities for solutions to this critical issue.

    Read More
  • Blog post

    When the C40 Mayors Summit convened in Sao Paulo, Brazil several years ago, the C40 didn’t even have a website and had just launched a Twitter account. What a difference a few years make. Now, we not only have a highly acclaimed web site (shameless promotional plug here and here) and over 12,000 followers, the organization – more importantly -- has developed a bona fide research organization, major international partnerships with the likes of the World Bank, ICLEI and Siemens, codified membership guidelines, appointed Regional Directors, and…. Well, we’ll stop there.

    Read More
  • Blog post

    This week, C40 Chair and New York Mayor Michael R. Bloomberg held a press conference with the Mayor of Johannesburg, Mpho Parks Tau, announcing the 2014 C40 Mayors Summit. Mayor Tau said that the summit is “a historic moment for Johannesburg.” But when the mayors, their staff members, and climate experts gather in 2014, they will not be working from a blank slate. It will be the fifth summit of its kind, all of which have proven to be key moments to accelerate the C40 memberships’ efforts to further reduce carbon emissions and improve the quality of life in their cities.

    Read More
  • Blog post

  • Blog post

    At the C40 Mayors Summit in Sao Paulo last year, the C40 Steering Committee drafted a communiqué to highlight for participants of the Rio+20 UN Conference on Sustainable Development the increasingly important role cities play in adapting to and mitigating the impacts of climate change. A related document was formally submitted to the UN Conference on Sustainable Development on November 1, 2011.

    Read More