Many people have the misguided belief that cities are energy efficient. Cities compared to other environments are often more efficient with respect to transportation, because fuel use actually drops off in city centers due to the availability of mass transit. But the embodied emergy as a whole in the infrastructure, people, and information in cities suggests the opposite. Cities are actually energy hogs, that concentrate energy. In a future of waning energy, are our biggest cities too big to fail? What size city is sustainable?
Cities: Too Big To Fail? (A Prosperous Way Down)
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