Sustainable design leaders share perspectives on the green building industry

  POSITIONED TO MAKE A DIFFERENCE   The dictionary defines a building as "a relatively permanent enclosed construction over a plot of land, having a roof and usually windows and often more than one level." That definition is correct as far it goes, but doesn't come close to addressing the true significance of    the "enclosed constructions" in which we spend 90 percent of our lives. Buildings are inextricable from the infrastructure of our society; they make up the world in which we live. Recognizing and addressing    buildings within this larger context is the foundation for U.S. Green Building Council's (USGBC) work in 2007 and beyond, and it is alsothe future of green building.