ST. LOUIS, Missouri, Jan. 25 -- Washington University in St. Louis issued the following news: * * * The life cycle of a building At Chicago Architecture Biennial, WashU and SOM showcase material reuse By Liam Otten What is the life cycle of a building? Each year, in the United States, new home construction accounts for 50 million tons of carbon emissions. The majority stem from harvesting, manufacturing and transporting building materials -- from lumber and masonry to glass and tile to roo  more