AgriEcology Environmental Timeline 1940's to 60's

  • Technological Improvements

    Technological Improvements
    There were several technical factors including better machines, new varieties of crops and livestock, new pesticides, and better irrigation techniques.
  • The Nature Conservancy

    The Nature Conservancy
    Started by scientists to acquire ecologically important reserves
  • The Postwar Period

    The Postwar Period
    The first piece of legislation to lay down regulation of water quality, the Federal Water Pollution Control Act, is passed by Congress.
  • Period: to

    PA Steel Mine Fire

    20 People died, and 600 people were sent to a hospital after a steel and wire plant in Donora, PA. The temperature was reversed which lead to the sulfur remaining in the atmosphere.
  • Resources for Freedom

    A document that outlines the US increasing reliance on foreign sources of natural resources.
  • Growing Public Awareness

    The Silent World by Jacques Cousteau introduces the world to an underwater adventure, and ushers in a new global interest in the ocean and its life.
  • Air pollution act passed

    Air pollution act passed. It was the first federal legislation that surrounded air pollution. The bill survived several years of pushback from the entire federal government.
  • Carbon Monoxide

    The total parts per million of carbon monoxide worldwide surpass 300 ppm.