In her 1962 book, Silent Spring, Rachel Carson wrote about a
chain of events that ended in tragedy for robins. "We spray our
elm trees and the following springs are silent of robin song—not
because we sprayed the robins directly, but because the poison
traveled..." What happened? Follow the food chain to discover
how the pesticides passed from elm leaves to robins. - Read
about Carson's courage to voice her concerns in the article,
From Elm Leaves to a Silent Spring. - Summarize the main ideas
and share your thoughts on a journal page.