Why did Rachel Carson care so deeply about nature?

Rachel Carson was a marine biologist, environmentalist, and author. She grew up on a sixty-five-acre farm near the Allegheny River in Pennsylvania and spent much of her childhood out in nature, enjoying and exploring the fields, forests, and streams around her home. She went on to study biology at what was then the Pennsylvania College for Women and did a fellowship at the US Marines Laboratory at Woods Hole, Massachusetts. She continued her biology studies at Johns Hopkins University. During her professional work as a writer and editor with US Fish and Wildlife Service, she became more knowledgeable and enamored of ocean life. She also became aware of and began to research the effect of pesticides on the natural world, which became fodder for her most well-known work, Silent Spring. Silent Spring became a massive bestseller and is credited with kicking off the environmental protection movement.
https://www.biography.com/scientist/rachel-carson

https://www.fws.gov/refuge/Rachel_Carson/about/rachelcarson.html