The cramped city-state is only years away from running out of landfill space.
Plus a look back at some of our favorite recent tactical urbanism installations.
The majority of U.S. states have "mediocre to awful" standards in science, according to a brutal new scorecard.
Your cell phone may provide the insight planners need to develop more efficient roads.
A Florida town tests a monitoring system that makes sure its residents are recycling properly.
As Chicago readies to host the G8 and NATO summits, its police force gets ready for what could be a historic gathering of protesters.
They save lots of money - and that's just their most obvious benefit.
A short history of snow removal in America's cities.
Boston is wooing venture capital away from its suburbs.
Energy-efficient homes are cheaper in the long run, and that's what buyers want
Does a controversial new app herald the death of street smarts?
A new website mixes live streams of police chatter with ambient music
The process of erecting a new building hasn't changed substantially in 50 years. Why is that?
A public/private partnership that will help better understand EV consumer behavior
Arlington County's Mobility Lab experiments with high-tech ways to help people get over their transit phobias
The city invests millions to build a state-of-the-art technology campus
Ball State University is halfway through a project that will dramatically cut its campus carbon emissions and cities are taking notice