Icebergs Threaten Alaska Oil Route to Valdez
The US Geological Survey warns Columbia Glacier may release up to 50 cubic miles of ice into Prince William Sound over 30 to 50 years, cluttering tanker routes as oil shipments begin from Alaska in 1977 after the North Slope pipeline is completed.
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United States Geological Survey
Columbia Glacier
Prince William Sound
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Dez
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United States Coast Guard
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Hans Hedtoft
Icebreakers Tackle Icebergs Near Valdez In Unified Push
In Alaskan waters near Valdez crews consider a cooperative method borrowed from Antarctic expeditions to move drifting icebergs. Up to four ships may form a team to nudge an iceberg aside and clear a safe path for vessels.
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Alaskan
Valdez
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