What is the main idea of Silent Spring?

The main idea of Silent Spring, written by Rachel Carson, in 1962, was that pesticides were harming the environment and wildlife, particularly birds. She focused on the pesticide DDT, which was first made in 1874 but was used extensively during World War II as a way to control diseases such as typhus and malaria where troops were stationed. Carson presented research that pesticides can accumulate in animals' bodies through a process called bioaccumulation and can cause cancers and other ill effects. She also presented research about the ways pesticides harm the environment and stated that overly relying on pesticides would be ineffective, as it would lead to the development of resistance on the part of the insects, resulting in even larger populations. Carson claimed that the industry that manufactured pesticides had tried to cover up the harmful effects of their products. Her book led to the birth of the modern environmental movement and a ban on DDT for use in agriculture.