Planners need to acknowledge the history, geography and diversity of cities, says renowned urban thinker

Cell phone-charging T-shirt tech to debut at the Glastonbury Festival.

Signals from mobile phones may be partly to blame for mysterious decline of bee populations around the world

This ain't no Prius.

Showroom stickers would rank cars based on fuel economy and emissions.

Mobile farm trucks bring local, sustainable produce to the people.

Stripped-down "social bicycle system" takes a minimal approach to urban bike share.

Experts say Asian smog accounts for 29% increase in baseline ozone since 1984.

Bicycles give way to automobiles, but e-bikes keep two-wheel tradition alive.