Inhabitat's Week in Green: Sky City One, sub-zero cafe and the world's longest Lego train track

Each week our friends at Inhabitat recap the week's most interesting green developments and clean tech news for us -- it's the Week in Green. Eyes in the design world turned to New York City this week as New York Design Week officially launched. We hit the floors of International Contemporary Furniture Fair today to bring you the best new green designs from one of the largest contemporary design shows in the US -- including Blackbody's gorgeous OLED light trees and Tat Chao's ethereal LED lamps ...