San Francisco Green Festival

"The San Francisco Green Festival is a joint project of Global
Exchange and Green America.  As a fledgling in 2002, San Francisco
started with only 50 speakers and a handful of special events. In 2008,
the San Francisco Green Festival boasted 3 days filled with the best in
green, and continues to expand in size and scope! With more than 150
renowned speakers and 400 green businesses, this event was an amazing
success!

Find out how Bay Area neighbors, community
nonprofits and city departments are working together to make their
cities healthier places to live."