Treehugger has figured out that the Merchandise Mart is the world's biggest green building, after reading an article in Business Week, apparently. Of course, we already knew that, but it was nice to learn more about some of the details:
"'It can be like performing surgery while the patient is still awake,' says Mark Bettin.Bettin has never performed in an operating room. But as engineering vice-president at Merchandise Mart Properties, he has just finished a three-year, multimillion-dollar odyssey to cut the massive structure's consumption of energy, water, and materials. The effort required overhauling decades-old practices and technology, from replacing most of the Mart's 4,000-plus windows and upgrading rusty motors deep in its subbasements to taking better care of dust mops. The reward: At 78 years of age, the Merchandise Mart is now the biggest green building in the world."