It was a second inspiring GreenBuild for me, in Chicago. Many folks – and I – had not been familiar with the city. Coming from Toronto, I noticed wistfully the great and beautiful variety of architecture; the public accessibility to the waterfront; the publicized civic pride in sustainable buildings; and the broad expanses of native plantings on sidewalks – not just medians - that allowed trees’ roots enough room to take up water. Not at all like the sometimes square-foot, or concrete ‘box’ tree-allowances in T.O.