Progressive San Francisco radio station KQKE 960 AM “The Quake” is changing it’s call letters and format to become KKGN Green Seed Radio, the first major radio to dedicate it’s format to environmental issues. The station will still feature it’s progressive talent line up but will also include two hours of “Green Seed Radio” in the afternoon and three minute “green vignettes” in place of some commercials during the day.