The 20-year-old U.S. Green Building Council, which launched its Leadership in Energy and Environmental Design green building rating system in 2000, estimates that more than 4.3 million people live and work in LEED-certified buildings. There are more than 59,000 commercial LEED-registered and -certified projects globally, says the USGBC. And there are 10.6 billion sq ft of LEED-registered and -certified projects in the U.S. alone.
USGBC currently has 77 chapters and 13,000 member companies and organizations. About 40% of LEED-registered projects are outside the U.S. There are World Green Building Council organizations in more than 80 nations.