10 American Cities Will Lead the Nation on Energy Efficiency

Huffington Post: In our cities, big buildings often run 24/7. Offices are continuously heated or cooled, elevators are running, lights, computers and equipment are on, continuously humming. Because they're constantly in operation -- you can't really unplug a building -- our buildings use enormous amounts of electricity, and are responsible for 40 percent of America's global warming pollution. In most cities, the proportion is even higher -- up to 50 or even 75 percent of carbon emissions come from buildings.

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