Ambitious plans to make Houston a more sustainable city . ' CNN : Spanjian is the voice of sustainability for Houston . She told CNN she wants to make Houston that is ` ` more liveable , walkable and bikeable ''
Ambitious plans to make Houston a more sustainable city . ' Spanjian is the voice of sustainability for Houston . She told CNN she wants to make Houston that is ` ` more liveable , walkable and bikeable ''