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Examines the mechanisms by which volcanic eruptions can cause short-term global effects and explores their possible role in profound environmental change. Shows the nature and extent of plateau lava...
Jack Temple is interviewed about his forthcoming Columbia rainforest expedition and its archaeological, ecological and medical aims. The interviewer is Chris Hourmouzious.
British Columbia millions of fish make way to spawning ground.
In British Columbia, millions of fish make way to spawning grounds.
The Columbia River, one of the most erratic in the world, is being harnessed. A joint Canadian-American project provides for four massive dams which will supply large amounts of electricity and prevent the...
MOVIETONE CARD TITLE: Dangers of Damming Columbia River. SHOTLIST: Shot of the workmen swinging across on girders. Shot of the dam. Shot of cable car swung across the river. Shots of the swirling water.
Captain John Saunders is interviewed about an expedition (beginning June 1977) rafting down the Rio Caqueta, a tributary of the Amazon, to conduct scientific projects in the border area of Columbia and...
Fraser River in flood.
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Related searches have been automatically generated using the OpenCalais semantic analysis service.