In early spring, Historecycle donned a hardhat and steel-toed shoes and returned to Chicago’s Glessner House to witness the crowning touches of the geothermal well drilling on site. Joggers in the adjacent Chicago Women’s Park, where trees were just turning green, were oblivious to another type of greening happening next door. In Glessner House’s courtyard, on the other side of the brick wall that separates the park from the building, four holes were being bored through bedro