By 2030, the UN forecasts 36 mega-cities, a billion urban Chinese in 221 cities of a million or more, 6 Indian mega-cities…

Filmmaker Gary Hustwit’s ambitious, intelligent film on urban design gives us a common language for understanding this century of the city but fails to account for underlying economics and ignores the issue of jobs (and joblessness)

Philadelphia’s air quality (amazingly about the national average) is about equal to that of Montreal and New Orleans, and is discernibly better than that of New York, Chicago, Los Angeles, Phoenix, and yes, St. Louis, according to a World Health Organization study released last week. (Of the MLB playoff cities, the air quality is best […]