Many might say that Carson's book—which relies on what was then cutting-edge science, especially medical research, to show the impact of pesticides on the environment—is even more relevant today than in the early 1960s.
The book is relevant because it carefully compiles scientific evidence to make its case. It shows that even though the impact of pesticides seems invisible, it is real, and it shows how all of the earth is interwoven ecologically. Damaging the soil or water damages animals (Carson focuses on birds) and humans.
In these days, the political debate about climate change is fierce. We debate, despite overwhelming evidence and consensus among scientists, whether climate change is manmade and real. Therefore, a book that advocates for decision-making based on a sober evaluation of facts is more needed than ever.