November 10, 2010, 12pm PST
Sarah Goodyear of Grist thinks Masdar, Songdu City and other smart mega-projects are fascinating, but, she says, what about fixing the cities we already have instead?
November 7, 2010, 5am PST
With more than 11,000 acres of brownfield sites in New York City sitting underused due to contamination, officials there want to get things cleaned up and reused. Urban designer Kaja Kühl offers this field guide to small-scale bioremediation to help.