In 1963, when CBS aired Rachel Carson's Silent Spring, the Environmental Protection Agency, or EPA, did not exist. The EPA was formally established in 1970 when President Richard Nixon consolidated several other federal oversight activities in a single agency. EPA's stated mission is "to protect human health by safeguarding the air we breathe, water we drink and land on which we live."

What role did Carson's work play in the genesis of the EPA, if any? A timeline on the agency's website may provide some clues. Visit the link below and explore the timeline. Notice that you can move through the timeline by clicking the "next" arrow on the right of the screen or by clicking on the timeline at the bottom of the screen and then dragging your cursor left or right.
As you explore the timeline, answer the questions in Part Two of the Evaluating Multiple Sources worksheet.