Critics have called him Canada’s greenest architect, and as the managing director of the Vancouver, British Columbia, office of international behemoth Perkins+Will, his business card has more letters appended to his name than a can of alphabet soup: C.M., FRAIC, MAIBC, Architect AAA, MOAA, Intl. Assoc. AIA, BCID, LEED AP. With these impressive credentials, Peter Busby, 59, runs his 88-person division of Perkins+Will with a fi rm design hand and a soft-spoken—even gentle—manner.