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Author: Saint Lawrence Seaway Development Corporation
Publisher:
ISBN:
Category :
Languages : en
Pages : 126
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Author: Saint Lawrence Seaway Development Corporation
Publisher:
ISBN:
Category :
Languages : en
Pages : 126
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Book Description
Author: Dan Egan
Publisher: W. W. Norton & Company
ISBN: 0393246442
Category : Science
Languages : en
Pages : 306
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Book Description
New York Times Bestseller Winner of the Los Angeles Times Book Prize Winner of the J. Anthony Lukas Award "Nimbly splices together history, science, reporting and personal experiences into a taut and cautiously hopeful narrative.… Egan’s book is bursting with life (and yes, death)." —Robert Moor, New York Times Book Review The Great Lakes—Erie, Huron, Michigan, Ontario, and Superior—hold 20 percent of the world’s supply of surface fresh water and provide sustenance, work, and recreation for tens of millions of Americans. But they are under threat as never before, and their problems are spreading across the continent. The Death and Life of the Great Lakes is prize-winning reporter Dan Egan’s compulsively readable portrait of an ecological catastrophe happening right before our eyes, blending the epic story of the lakes with an examination of the perils they face and the ways we can restore and preserve them for generations to come.
Author:
Publisher:
ISBN:
Category : Harbors
Languages : en
Pages : 16
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Author: National Research Council (U.S.). Committee on the St. Lawrence Seaway:Options to Eliminate Introduction of Nonindigenous Species into the Great Lakes, Phase 2
Publisher: Transportation Research Board
ISBN:
Category : Political Science
Languages : en
Pages : 228
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Book Description
The Laurentian Great Lakes are the largest unfrozen reservoir of freshwater on earth, accounting for almost one-fifth of the worlds fresh surface water. They are vital to the economy of the Great Lakes region and to the quality of life of its residents, providing drinking water for more than 33 million people in Canada and the United States, supplying hydroelectric power, supporting industries, providing waterborne transportation, and offering a variety of recreational opportunities. Human activities have, however, imposed stresses on the Great Lakes basins ecological integrity, and one of these stresses the introduction of nonindigenous species of animals and plants is the focus of this report. The opening of the St. Lawrence Seaway in 1959 provided a route into the Great Lakes not only for international maritime trade but also for aquatic invasive species (AIS) carried in the ballast water needed by ships to operate safely. Ships ballast water is not the only vector by which AIS enter the Great Lakes, but it has accounted for 55 to 70 percent of reported AIS introductions since 1959, including that of the zebra mussel (Dreissena polymorpha).
Author: United States. Army. Corps of Engineers. Detroit District
Publisher:
ISBN:
Category : Great Lakes
Languages : en
Pages : 344
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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 734
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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 704
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Author: United States. Congress. House. Committee on Appropriations. Subcommittee on Transportation, Housing and Urban Development, and Related Agencies
Publisher:
ISBN:
Category : Administrative agencies
Languages : en
Pages : 1076
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Author:
Publisher:
ISBN:
Category : Ice navigation
Languages : en
Pages : 314
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Author: United States. Congress. House. Committee on Appropriations. Subcommittee on Transportation, Housing and Urban Development, and Related Agencies
Publisher:
ISBN:
Category : Administrative agencies
Languages : en
Pages : 820
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