More than 25,000 attended the U.S. Green Building Council’s Greenbuild International Conference and Expo, which met in Boston Nov. 19-21. The theme of this year's expo was “Revolutionary Green: Innovations for Global Sustainability.”

Greenbuild continues to grow in attendance. The 2007 event drew 22,835. In 2006, Greenbuild had 13,382 attendees.

Phoenix will be the site of the next Greenbuild, which is scheduled for Nov. 11-13, 2009. More information is available here.