A More Perfect Union

In 1962, when the Cold War threatened to ignite in the Cuban Missile Crisis, when more nuclear test bombs were detonated than in any other year in history, Rachel Carson released her own bombshell, Silent Spring, to challenge society's use of pesticides. To counter the use of chemicals--and bombs--the naturalist articulated a holistic vision. She wrote about a ''web of life'' that connected humans to the world around them and argued that actions taken in one place had consequences elsewhere.