During the seventeen years she worked in the US Fish and Wildlife Service, Rachel Carson learned about the problems of pesticides. Undaunted by the chemical companies' hostility and by the public's high enthusiasm for pesticides, she wrote a book called Silent Spring, which caused a major shift in public consciousness about the environment.
Before the publication of Silent Spring in 1962, there was just one major piece of legislation:
Since the publication of Silent Spring, there has been a major shift in public consciousness about the environment. Years later, legislators have responded with the following: