Following yesterday's post on future green cities, here's some additional scholarship on a current one from Maria Colenso posting at How Stuff Works:
Reykjavik is the smallest amazing green city on our list, with only about 115,000 people living in the city and roughly 300,000 people in the entire country of Iceland. But its impact on the world has been impressive.
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Iceland plans to unplug itself from all dependence on fossil fuels by 2050 to become a hydrogen economy. Already, Reykjavik (and all of Iceland) gets energy for heat, hot water and electricity entirely from hydropower and geothermal resources -- both of which are renewable and free of greenhouse gas emissions. Some vehicles even run on hydrogen, including three city buses.