What is a green city? What does it mean to say that San Francisco or Vancouver is more "green" than Houston or Beijing? When does urban growth lower environment

Cities are not only home to around half of the global population but also major centers of economic activity and innovation. Yet, so far there has been no conse

Nearly 4,000 cities on our planet today have populations of 100,000 people or more. We know their names, locations, and approximate populations from maps and ot

This is an up-to-date and topical treatment of how six major cities in Europe, North America and Asia are coping with the new demands on urban government. Popul

When and how were cities born? Does urbanization foster innovation and economic development? What was the level of urbanization in traditional societies? Did th