What is the theme in The Monkey Wrench Gang by Edward Abbey?

Contrary to the theme of environmentalism is the theme of industrialization. Throughout the area, individuals are interested in the natural resources the desert has to offer, and are willing to destroy the beauty of the area in order to mine those resources. Abbey describes, in detail, the lack of trees due to logging, the huge holes in the ground from oil drilling, the hazy air from coal plants, and the disruption of natural water flows due to damming and bridging. Further, Lake Powell, the byproduct of the Glen Canyon Dam, is a testament against industrialization, as the lake now covers towns, trees, and other scenic components.