During the U.S. Green Building Council's Annual GreenBuild Conference,Johnson Controlshosted the first Green Tie Affair to celebrate the greening of the world building industry and the 10th Anniversary of the U.S. Green Building Council (USGBC). More than 200 sustainability practitioners - organizations that support the green building concept - and 50 companies that have succeeded in sustainable design and development donned green bow ties at the Westin Hotel, in Pittsburgh.