September 11, 2013, 12pm PDT
PlanIT Valley, Masdar City, Songdo - the names of these bold visions elicit past promises of a smart and sustainable future. Eric Jaffe rounds up the latest news on the progress of the world's new urban utopias.
June 11, 2012, 10am PDT
Collecting real-time information will be as essential to building the city 2.0 as coordinating the top-down integration of infrastructure systems. A new city in Portugal will use more than 100 million sensors to build its feedback loop.
October 12, 2010, 11am PDT
An ambitious eco-city is going up in Portugal, complete with a central "brain" that monitors feedback on water, energy and transport systems.