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.
With Thanksgiving in the rearview mirror, it's time to start thinking about holiday decorations. London's Southbank Centre recently gave new meaning to the phrase "green energy" by unveiling a Christmas tree powered entirely by Brussels sprouts. And in Austria, a family claimed their second Guinness World Record by stringing over half a million LED Christmas lights across their property. In other tech news, Recchi Engineering and Carlo Ratti Associati won a competition to design Holland's 17,000-square-foot pavilion for the 2015 World Expo in Milan. The pavilion's green roof will be tended by a pair of self-driving tractors. Manuel Dominguez dreamed up a design for a futuristic mobile metropolis that can actually move to different locations in search of resources. And in Bogotá, a crowdfunding campaign has been launched for what could be Colombia's tallest skyscraper.