Nissan Goes Green in New US Headquarters

Sun shades are seen being installed on the outside of the new 10-story Nissan headquarters in Franklin, Tenn., on Jan. 25, 2008. The shades act like reflective visors and have computer-designed blades to reduce glare and heat in the Southern summer. The building, with features aimed at showing a concern for the environment, opens in July 2008. (AP Photo/Mark Humphrey)