Saving energy has long been touted by environmentalists as one of the best ways to reduce air pollution and save money at the same time. However, while many American businesses and institutions have embraced energy efficiency, others have lagged behind. But in recent years, that’s begun to change as more people discover that saving energy makes good economic sense. (In the second of a two part series on energy efficiency), the Great Lakes Radio Consortium’s Steve Frenkel reports on three vary different organizations that are becoming more energy efficient: