NUMBER OF LEED CERTIFICATIONS SKYROCKETS

Nearly half of all certifications in the eight-year history of the Leadership in Energy and Environmental Design (LEED) program occured in 2009, one of the toughest economic years in memory, according to new U.S. Green Building Council (USGBC) data.

Of the 4,328 LEED-certified projects in existence, about 2,090 -- more than 48% -- achieved ... Log in to view the full text.