December 31, 2009, 10am PST

Over the course of the year, the editors of Planetizen review and post summaries of hundreds of articles, reports, books, studies, and editorials related to planning and urban development.

Nate Berg, Tim Halbur
December 31, 2009, 9am PST
The current means of generating hydrogen for fuel results in a release of carbon dioxide emissions. Researchers think aluminum may be the solution to the pollution.
December 31, 2009, 6am PST
Breached levees are a major concern for riverside cities; New Orleans struggled with their disastrous results after Hurricane Katrina. While shoring and sandbagging have been relied upon in the past, new methods for stopping breaches are emerging.
The Economist
December 30, 2009, 2pm PST
<em>Triple Canopy</em> translates a Chinese interview with Shu Yu, one of the world's foremost underground urban planners. He talks about the potential of underground space for urban habitation.
Triple Canopy
December 30, 2009, 9am PST
Looking at the city of Chicago and how it should approach the future, John Tolva writes about the potential for tapping into city data and embracing the "second city" it creates.
IBM's Smarter Planet blog
December 30, 2009, 6am PST
The Infrastructurist finishes its list of the top infrastructure stories from the past decade.
The Infrastructurist
December 29, 2009, 9am PST
In the first of two installments, <em>The Infrastructurist</em> counts down the top ten infrastructure stories from the past decade.
The Infrastructurist
December 28, 2009, 7am PST
Peer Smets (VU University Amsterdam) investigates the socio-cultural impacts of specific patterns of urban segregation (gated communities) on local urban politics and urban governance.
The Urban Reinventors Online Urban Journal
December 27, 2009, 5am PST
Architect Steven Holl's new book is a retrospective of his 30-year career, and an overview of his argument that architecture needs an element of doubt.
re:place Magazine
December 26, 2009, 11am PST
Next American City asked prominent urban thinkers for their opinions on what 2010 will hold for the world. Here are their responses.
Next American City
December 26, 2009, 7am PST
Treehugger has a look at the best and worst transportation technology of 2009, from solar planes to bike highways.
December 25, 2009, 7am PST
Low-tech Magazine details the history of the trolley canal boat, a staple of the past for transporting goods down canals and waterways. Could something like this make a comeback?
Low-tech Magazine
December 24, 2009, 9am PST
A new report from PikeResearch predicts the future for electric vehicles in 2010, including the prediction that hybrids will dominate the market.
Renewable Energy World
December 24, 2009, 5am PST
Malcolm Wells was a pioneer of sustainable design, with an emphasis on green roofs and underground buildings. He died recently at the age of 83.
Design Boom
December 21, 2009, 5am PST
Understanding the needs of ethnic minorities is critical for contemporary working planners, says Leonardo Vasquez, AICP/PP.
Leonardo Vazquez, AICP/PP
December 20, 2009, 11am PST
<em>Los Angeles Times</em> architecture critic Christopher Hawthorne looks back at the past ten years of architecture and sees a growth in the field's importance in the U.S., though not in its power.
Los Angeles Times
December 19, 2009, 1pm PST
With computer animation becoming ubiquitous, the usual flythrough no longer makes an impression. Nate Berg looks at the leading edge of architectural animation.
The Architect's Newspaper
December 19, 2009, 5am PST
Through advancements in technology, digital facades are becoming significantly easier to implement on a wide variety of architectural projects. Programmable surfaces maybe a big part of the future of buildings.
Architectural Record
December 18, 2009, 10am PST
<em>Treehugger</em>'s Lloyd Alter takes a look back at the last ten years of architecture and finds some progressive trends and positive signs for the future.
December 18, 2009, 8am PST
Adam Christensen of IBM's Smarter Planet blog predicts five ways that cities are going to become smarter by networking their environment.
IBM's Smarter Planet blog