Unit 7 section 2 lesson 4 the environmental movement

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Unit 7 section 2 lesson 4 the environmental movement

  1. 1. The Environmental MovementUnit 6, Section 2, Lesson 4
  2. 2. Objectives • Assess the causes and effects of the environmental movement. • Analyze why environmental protection became a controversial issue.
  3. 3. Terms and People• toxic waste − poisonous byproducts of human activity• Earth Day − a nationwide protest about environmental concerns on April 22, 1970• EPA − the Environmental Protection agency, a federal agency established in 1970 to clean and protect the environmentClean Air Act − passed in 1970 to combat air pollution, including limiting emissions from cars and factoriesClean Water Act − passed in 1973 to limit water pollution caused by industry and agricultureEndangered Species Act − passed in 1973 to protect at-risk plants and animals
  4. 4. What forces gave rise to theenvironmental movement, and whatimpact did it have?The rights revolution of the 1960s and 1970sextended to people’s right to clean air andclean water.Public awareness of environmental issuesprompted debate about the government’s rolein environmental regulations.
  5. 5. “There once was a town in theheart of America where all lifeseemed to live in harmony with itssurroundings… Then a strangeblight crept over the area andeverything began to change.Mysterious maladies swept acrossthe flocks of chickens; the cattleand sheep sickened and died…There was a strange stillness. Thebirds, for example – where hadthey gone? … On the morningsthat had once throbbed with thedawn chorus of bird voices therewas now no sound; only silencelay over the fields and woods andmarsh… No witchcraft, no enemyaction had silenced the rebirth ofnew life in this stricken world.The people had done it tothemselves.”Rachel CarsonSilent Spring, 1962
  6. 6. In 1962, biologist RachelCarson published a book aboutthe deadly impact of pesticideson animals and the environment. The impact of Silent Spring eventually forced Congress to ban the pesticide DDT.
  7. 7. In 1969, fire ignited thesludge-filled CuyahogaRiver in Ohio.Carson’s book and theCuyahoga River firecaused growing concernabout the environment.
  8. 8. Twenty million Americans participated in thefirst Earth Day on April 22, 1970. Earth Day was a nationwide protest to focus attention on environmental concerns and to move this issue into the mainstream political arena.
  9. 9. President Nixon recognized the need to clean upthe environment. Environmental legislation in the 1970s created: • the Environmental Protection Agency • the Clean Air Act, the Clean Water Act, and the Endangered Species Act • the Nuclear Regulatory Commission
  10. 10. In the late 1970s investigators discovered toxicwastes in Love Canal, New York. Residents of the area had unusually high rates of cancer and birth defects. This contamination prompted Congress to establish a Superfund to clean up toxic waste.
  11. 11. The federalSuperfundcleanup projectcontinues in thetwenty-firstcentury.
  12. 12. In 1979, a nuclear accident occurred in Pennsylvania. • A nuclear reactor at Three Mile Island malfunctioned, causing its core to start melting. • Authorities declared a state of emergency because there was a possibility that the reactor would release radioactive gas. • Authorities then shut down the reactor.
  13. 13. Emergency workers contained the accident. President Carter and his wife toured the reactor to reassure people but public concern grew. Most Americans opposed nuclear power plants so the government stopped building them.
  14. 14. • Conservatives said the laws violated people’s propertySome people rights.opposed • Industry leaders arguedenvironmental environmental regulationsregulations. would limit businesses and jobs. Americans were divided about what the government should do to protect the environment.

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