The 'Green' Skyscraper

"The building of the future will not just sit on a lot. It will be productive. From solar panels that produce power to tree-filled terraces that recycle water, the building will work, quite literally, from the inside out. How distant is this prospect? Hard to say. All the technologies mentioned are "state of the shelf": That is, they already exist, although not all are economically practical. But architecture and design are crafts for the long term. This tower shows the way urban centers can get closer to nature - and in the process keep neighborhoods and cities vibrant and healthy."