C40 Climate Leadership Group

C40 is a group of the world’s largest cities committed to tackling climate change. Originally a partnership between the international Large Cities Climate Leadership Group and the Clinton Climate Initiative, C40 works on the creation of procurement policies and alliances to accelerate the uptake of climate-friendly technologies and influence the global market-place. The C40 website includes a database of city best practices.

The link address is: http://www.c40cities.org/