The Nature of Things

Danger: Man At Work - Water (10x3)

Fecha de emisión: Oct 08, 1969

The third program in a six-part series about pollution. This program shows how water is distributed throughout our environment, how it purifies itself, and how man has maltreated it. Canadian examples of water pollution shown in this program include the industrial waste which is wiping out the salmon of the St. John and Miramichi Rivers in New Brunswick; and the mounting danger to British Columbia's Fraser River.