-
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
Started by scientists to acquire ecologically important reserves -
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.