Carson consistently describes the intricate connections between different forms of life on earth. The chemical interventions that humans use to control nature often serve to disrupt this balance. By emphasizing the way that nature exists “in a relation of interdependence and mutual benefit” (78), Carson is able to argue more clearly for an end to the widespread use of chemical compounds. Even if not every chemical causes direct impacts to people, when humans upset the “delicate balance of populations by which nature accomplishes far-reaching aims” (57), it can have devastating effects on the way the whole environment operates.

Humans are risking the health of the world that supports life through their careless use of chemicals that alter the delicate relationships between living things. Carson also illustrates that when the web of life is altered in one place, it can cause unforeseen impacts in other areas, which is an apt metaphor for the invisible impacts of chemicals on the human body. Without acknowledging the complex relationships between and within living things, it will be impossible to truly understand the impacts of the use of insecticides.