While New York can't be redesigned from scratch to be entirely powered by renewable energy, like Masdar, we can take our cues instead from Juneau. When an avalanche forced Alaska's capital to switch from hydro to diesel power, its citizens cut their energy demand by 30% -- and it's still down by 15-20%, months after hydro was restored. We talk to deputy mayor Randy Wanamaker about the city's new culture of conservation.
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