C40 - Large Cities Climate Leadership Group

C40 is a group of large cities committed to implementing plans and initiatives to combat climate change by reducing greenhouse gas emissions through a range of energy efficiency and clean energy programs. The C40 network, working with the Clinton Climate Initiative, provides a forum in which cities work together, share information, and demonstrate leadership.

The current chair of the C40 is Mayor Michael Bloomberg of New York City.

For information on the C40 Mayors Summit taking place May 31 through June 2, 2011 in Sao Paulo, Brazil, visit http://live.c40cities.org.