Chapter 21 Environmental Science

was a biologist with the U.S. Fish & Wildlife

Service who raised awareness of toxic

pesticides with her 1962 book, Silver Spring

• Aldo Leopold

• Rachel Carson

• reduce, reuse, and

  recycle

• Garrett Hardin

an action that a citizen can take to elect

officials who share the person’s environmental

concerns

• Rachel Carson

• reduce, reuse, and

  recycle

• Garrett Hardin

• voting

actions that individuals can take to protect the environment

• voting

• Garrett Hardin

• reduce, reuse, and

  recycle

• Rachel Carson

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author of “The Tragedy of the Commons”

• Aldo Leopold

• Rachel Carson

• Garrett Hardin

• voting

author of A Sand County Almanac

• Aldo Leopold

• Rachel Carson

• Garrett Hardin

• reduce, reuse, and recycle

Who is associated with Walden Pond?

• John Muir

• Henry David Thoreau

• Jacques Cousteau

• Alice Hamilton

Early environmental leaders were all

• trained scientists

• Americans

• politicians

• concerned about land and species preservation.

What does it mean to “think globally, act locally”?

• Actors should focus on international films.

• Global concerns are separate from local issues.

• Everyday actions have broad effects.

• Ideas are bigger than actions.

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How can individuals actively influence laws concerning environmental policies?

• vote

• buy more products

• watch television

• recycle

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Paul Ehrlich warned of the dangers of

• toxic chemicals.

• overpopulation.

• ocean pollution.

• chimpanzees.

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