Around America tent cities are springing up as people are losing their houses and their jobs. And it isn't just the drunks and the disturbed; at this tent city in Reno, Seven in 10 were from the area, where the housing market has cratered, the tourism industry is in the dumps and construction jobs have disappeared. They are the modern Hoovervilles (Bushburbs?) filled with economic refugees.

Eve Blossom of Lulan

Christine wrote earlier about American Express' competition where cardholders and anyone else can vote to choose worthy projects, where the winner gets $ 1.5 million to "make the world a better place". Now TreeHugger hero Cameron Sinclair is asking for a little love for an Architecture for Humanity submission. Soon- time is running out.

With more than half of humanity now living in cities, and the built environment set to expand massively over the next few decades, the way we create our cities may be the key to achieving a sustainable future.

By recognizing that the city block is to the built environment what the cell is to the human body, San Francisco-based Urban Re:Vision aims to revolutionize the way we plan, build and experience our cities.

With more than half of humanity now living in cities, and the built environment set to expand massively over the next few decades, the way we create our cities may be the key to achieving a sustainable future. By viewing the city block as the basic unit of city building, San Francisco-based Urban Re:Vision aims to revolutionize the way we plan, build and experience our cities.

The Winners have been chosen in the Architecture for Humanity's Sportables Design Competition sponsored by Google Sketchup, where designers were challenged to "create a highly demountable, portable sports product library, product development studio, and futsal (soccer) play area. "