More than just the latest trend, environmentally conscious meetings, receptions, conferences, weddings, seminars, retreats, birthday parties, bar mitzvahs and anniversary parties make good business sense. According to TheGreenGuide, municipal composting, green design, a high percentage of renewable energy and a high use of public transportation propelled San Francisco into the top 25 green cities in the US in 2006, and the top ten in 2005!