The list of events that seek to capitalize on the popularity of sustainability and worries about climate change is growing. Some conferences are so similar they cause deja vu, attendees say.
There are so many eco events that even the most gung-ho attendees and exhibitors say they suffer conference overload. Above, reusable bottles at the Go Green Expo in Los Angeles in January. (Christina House / For The Times / January 22, 2010)