Scheduled speakers and entertainment include former U.S. Vice President Al Gore, singer Sheryl Crow and USGBC founder and CEO Rick Fedrizzi.

Organizers are expecting 20,000 attendees when Greenbuild opening Wednesday in Phoenix.

More than 1,800 trade show exhibitor booths and a green-jobs fair are among the attractions slotted for the three-day event.

“This year’s Greenbuild will offer more opportunities than ever for attendees to literally connect to the conversation, whether it is through interactive sessions and events, the vast expo floor or through social networking platforms,” said Kimberly Lewis, vice president of conferences and events for the U.S. Green Building Council, which sponsors the show.

Scheduled activities also include an executive roundtable where corporate and nonprofit leaders will explain what sustainability means to them; “salons,” where art, technology and sustainability are to be merged; and a summit focusing on the health of the sustainable home-building market.

Scheduled speakers and entertainment include former U.S. Vice President Al Gore, singer Sheryl Crow and USGBC founder and CEO Rick Fedrizzi.

For a full listing of events, visit theshow Web site.