JUNEAU, Alaska — Conservationists swoon at the possibility of it all. Here in Alaska, where melting arctic ice and eroding coastlines have made global warming an urgent threat, this little city has cut its electricity use by more than 30 percent in a matter of weeks, instantly establishing itself as a role model for how to go green, and fast.

Comfort has been recalibrated. The public sauna has been closed and the lights have been dimmed at the indoor community pool. At the library, one of the two elevators was shut down after someone figured out it cost 20 cents for each round trip. The thermostat at the convention center was dialed down eight degrees, to 60. The marquee outside is dark.


... “People are suddenly interested in talking about their water heaters,” said Maria Gladziszewski, who handles special projects for the city manager’s office. “As they say, it’s a teachable moment.”