At least 16 cities have made that commitment and various others are weighing the move toward fully embracing carbon- and pollution-free energy.
Four of them are already obtaining 100% electricity from renewable sources: Aspen, Colorado; Burlington, Vermont; Columbia, Maryland, and Greensburg, Kansas.
According to the report, reasons that cities are adopting clean energy include:
- It keeps money in local government coffers. Solar prices have declined 80% in recent years and wind by 60%.
