The Singapore Mass Rapid Transit system (MRT). By williamcho.

The world, and Asia in particular, is heading in the wrong direction

China added more than 2 million kilometers of road in the past two decades, encouraging personal vehicle usage. Photo by Joe Dunckley.

The Napolitano urbanscape, host to the 6th World Urban Forum. Photo by blillaby.

A new report on Chicago by the city's non-profit economic development agency found that focusing on transportation is an important element of keeping the city competitive. Photo by Colin Harris.

Zipcar’s Future Metropolis Index

Photo by Anne Roberts.

What will a world population of 7 billion do to our quality of life? Photo by the World Resources Institute.

 People living in urban slums, like here in Mumbai, are especially vulnerable to risks associated with climate change. Photo by Jon Baldock.

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p>Since 1985, the United Nations designated the first Monday of October as World Habitat Day.

Living Cities works to link private capital with innovation in cities. Photo by Evan Leeson.

The 2010 U.S. Census reveals an interesting juxtaposition between a young minority population and a maturing white population. Photo by Owls Flight Photography.

Dharavi slum in Mumbai, India. Photo courtesy of Swiss Dots Ltd.