Before the day ends, we wanted to take a moment to acknowledge the 5-year anniversary of 9/11, and to look at the most recent developments at Ground Zero, where David Child’s Freedom Tower has just been introduced to its three little siblings, each designed by a different starchitect. We are not entirely sure that having every tower designed by a different architect was such a great idea – the whole thing looks like sort of a weird hodge-podge of competing aesthetics (unlike Daniel Libeskind’s beautifully cohesive original design), but hey – at least the project finally seems to be moving forward again.

For those of us keeping an eye on Ground Zero’s green attributes, there are organizations like Green Ground Zero and dedicated architects like Randy Croxton, who spearheaded the authorship of the Sustainable Design Guideline Reference Manual for the World Trade Center. An interesting article on these sustainable WTC advocates can be found at Treehugger, as well as on In addition, New York Governor George Pataki announced three days ago that all four towers will aim for LEED Gold and will generate energy on-site with fuel cells.

It’s been a very long road, not only for those affected by the tragedy, but for those working to plan the rebuilding. Divergent interests and high emotions have made the process slow and difficult. But we’re beginning to see a hopeful forecast for the empty space in Lower Manhattan.