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Special Report

Urban Visions: The Future of Cities

What will population centers look like in 20 years' time? Innovations in transportation, energy production and technology will have to keep pace with a host of challenges

  • June 15, 2010

What Is the Smart Grid?

Updating the aging electricity grid may save money, energy and greenhouse gas emissions

May 10, 2010

Encourage Walking with Urban Planning

People take cars for walkable trips in part because such trips are boring and unattractive. Better design of the urban environment could create more pedestrians. Karen Hopkin reports

June 3, 2010
Sprawling into the Third Millennium

Sprawling into the Third Millennium

Suburbia was a dream inspired by revulsion to city life. Now many suburbs are just as crowded, and sprawl moves on.

March 1, 2001 — Rodger Doyle