Composition-wise, the Joshua trees provide the main characters in the scene, but the centering of the light pollution and its bright and distracting visual nature invite the viewer to look into and consider deeper layers of context and meaning. The human capacity for self-destruction is deeply ingrained in our nature, our religions, and the lore of modern culture. We can ignore the context by focusing on the immediate setting in front of us (the Joshua trees), much as most of us do in our daily lives.
The sheer beauty of the cosmos, the Milky Way, the beautiful aurora-like green chemiluminescence of oxygen in airglow caused by natural radiation in space, versus the human health and ecosystem-challenging light pollution from the Nevada Test Range over the distant horizon, site of nuclear bomb development and tests. The nuclear bombs themselves both ended a world war, and threaten to star in an ultimately disastrous global catastrophe that is the premise for many post-apocalyptic movie plots.
The Nevada Test Site provides both valuable jobs for the local economy, and a careless disregard for human and ecosystem health. Why don't they shield their lights?