World

Researchers from Georgia Tech are blending real-time video with imagery from Google Earth to create dynamic visualizations of urban places. [Video]

A new report in the journal Nature suggests that there are seven thresholds for determining planetary health -- and we're already past three of them.

This series of infographics and posts from Good looks at innovations within a variety of world cities that improve city organization and operation -- from traffic to energy production to water conservation.

Can Facebook, Twitter, and MySpace replace the neighborhood bar, cafe, or hangout? Mary Newsom says no.

A new study has shown that the environmental benefits of green roofs are even greater than previously thought.

Michael Klare believes that our transition from petroleum to sustainable energy sources will not be easy, smooth or peaceful.

Fred Kent of the Project for Public Spaces was recently entangled in a dispute with architect Frank Gehry over the impact of iconic architecture in cities. Though Gehry's work has its moments, Kent says city emphasis on icons is a mistake.

Interconnectedness is just as important to brains as it is to cities, according to researchers who've just released a study about the organizational similarities between cities and brains.

As it prepares to host world leaders for the G-20 summit, Pittsburgh is hoping to show to the world that it's no longer a dying city.

The Broken Windows theory suggests that a high concentration of small, petty crimes leads to a higher incidence of bigger, nastier crimes. Some European cities run counter to that premise, according to this piece from Next American City.

Matsys, an experimental architecture firm, used the book Dune as a starting point for its design of a terraced, sunken city form focused around preserving water.

By combing through images on Flickr, a team of researchers has created a 3-D model of the city of Rome constructed from 150,000 tourist snapshots.

Imagining cities of the future can bring about some pretty wild predictions. But when they're visions of existing cities, these futuristic predictions can be almost realistic.

We've gotten a lot of responses on our Top 100 Urban Thinkers list, particularly those wanting to separate out the 'bad' from the 'good'. Mary Newsom was inspired by the list to ponder, who was the worst?

Witold Rybczynski bemoans the green movement's emphasis on sustainability measure that treat environmental action as a process of accessorizing rather than changing lifestyles.

This piece from the Guardian looks at a handful of projects and ideas that are emphasizing the importance of sustainable metropolitan areas in an age of diminishing resources and environmental devastation.

Achieving sustainability can take one of two paths, according to Richard Carson: centralized or decentralized policy. Choosing one will be crucial.

A new picture book introduces the architecture and urban ideas of Le Corbusier to children.

Monitoring how much water is diverted from rivers and pumped from wells is notoriously difficult. But now, researchers have developed a new way to track usage.