Road to Rio: News & notes from C40 as we prepare for “Rio + C40: Megacity Mayors Taking Action on Climate Change”

With just eight days until the Rio+20 Earth Summit commences, C40, leaders, and sustainability groups across the globe are busy preparing this historic event.


So far the theme of environmental news this week has been “room for improvement.” The United Nations Environment Program (UNEP) issued a report showing that the world has made significant progress on only four of the 90 most important environmental objectives agreed upon through the U.N. process. Check report coverage from the Washington Post and Associated Press to learn more. Additionally, a recently released MIT survey found that “major U.S. cities are among the world's wealthiest and technologically advanced, but they lag behind their counterparts in Latin America in preparing for climate change,” USA Today reported. 


C40 is busy finalizing our June 19th event: Rio + C40: Megacity Mayors Taking Action on Climate Change. The daylong event will showcase how cities around the world are leading the way in taking meaningful action to mitigate and adapt to climate change, and will feature a united call by cities to national governments and international organizations to work more collaboratively with cities and impose fewer barriers on their ability to act on an even grander scale. The event will feature local leaders and technical experts who can speak to how cities are on the frontlines battling the impact of climate change day-to-day, and are implementing innovative local solutions that are having an impact globally.

We are pleased to announce that more than 35 cities have confirmed their participation at our event, including the following:

  • Austin
  • Barcelona
  • Basel
  • Beijing
  • Bogota
  • Buenos Aires
  • Caracas
  • Changwon 
  • Curitiba
  • Chicago
  • Copenhagen
  • Dhaka N.
  • Dhaka S.
  • Hanoi
  • Heidelberg
  • Jakarta
  • Johannesburg
  • Karachi
  • Lagos
  • London
  • Los Angeles
  • Melbourne
  • Mexico City
  • Milan
  • New York
  • Paris
  • Philadelphia 
  • Portland
  • San Francisco
  • Santiago
  • Sao Paulo
  • Seoul
  • Stockholm
  • Rio de Janeiro
  • Tokyo
  • Yokohama
Please to continue to visit the C40 blog as Rio+20 nears. It will serve as our main, unfiltered platform to communicate to our growing audience news and events from Rio. We will also bring you expert voices, share news and provide insights into the day-long event for those who cannot attend. To learn more about “#ycities” matter, we hope you will visit our platforms and share with your followers, friends and family:
  • Blog: Visit for event updates, information about C40 and much more. 
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