Louise Nevelson’s Atmosphere and Environment XII (1970) was relocated to Penn’s Shoemaker Green this past summer. The sculpture follows the style of Nevelson’s wooden collage “environments,” which consisted of monochromatic wall-like sculptures containing various abstract forms. Atmosphere and Environment XII consists of open rectangular prisms containing abstract geometric shapes and is made of steel, which naturally oxidizes to form a patina, to evoke the landscape of a modern city.