Jonathan McGaha I don't believe I'd classify it as environmental investigation. It's a work of personal remembrance, with environmental persuasion built into it. The bricks are the recollection of Bair's life, the mortar is her concern for her homeland's environment.
Dale Kerbs I would not classify this as a piece of environmental investigation. I see this as a personal memoir - a love story if you will. A woman's love for a man, a mother's love for her son, and a person's love for the land she knows so well.