Gary Christensen , developer of the Platinum-level LEED-certified Banner Bank Building in Boise, will give a keynote address June 7 at the Spokane Sustainability Forum. The conference will center on “The Built Environment” and include open panel discussions and speeches by Spokane Mayor Dennis Hession, state Sen. Chris Marr and Alan Durning , an author and founder of Sightline Institute. Held at the Northwest Museum of Arts and Culture’s auditorium, the event costs $30 and includes lunch. Space is limited. Contact Joy Thompson at (509) 335-4194 or by e-mail at joyt@wsu.edu for registration information.