Joint Acquisitions List of Africana PDF Download

Author:
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Category : Africa
Languages : en
Pages : 680

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Author: Library of Congress. Library of Congress Office, Nairobi, Kenya
Publisher:
ISBN:
Category : Africa, Eastern
Languages : en
Pages : 880

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Number 6 includes cumulative main and added entry index for the monographs listed in that year.

Author: François Doumenge
Publisher: Presses Universitaires de Bordeaux
ISBN:
Category : Geography
Languages : fr
Pages : 340

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Author: Aneerood Jugnauth
Publisher:
ISBN:
Category : Mauritius
Languages : en
Pages : 312

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Author: Chanthalangsy, Phinith
Publisher: UNESCO Publishing
ISBN: 9231010069
Category : Philosophy
Languages : en
Pages : 236

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Author: Food and Agriculture Organization of the United Nations
Publisher: Food & Agriculture Org.
ISBN: 925107948X
Category : Juvenile Nonfiction
Languages : en
Pages : 172

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The ocean covers 70 percent of the Earth’s surface, and is essential for life on our planet – even for those of us who live nowhere near the sea! It provides us all with food and other materials that we need, regulates our climate and provides half of the oxygen we breathe. The ocean also offers us various means of transport and opportunities for recreation. People have long thought that the ocean was so wide and bountiful that it would go on supplying our needs forever, but this is not the case: human activities are causing significant damage to life in the ocean. People are often unaware of the problems created by this heavy reliance, as few of us have the opportunity to look beneath the surface of the sea and see the damage that our actions have caused. This is where the Ocean Challenge Badge comes in: let it take you on a journey to discover the ocean! It is packed with activities to help you learn about how the ocean works, the creatures that live in it, and just how important it is in our everyday lives. You will also discover how YOU can play a role in protecting our ocean for future generations. We hope you will be inspired to take the challenge and celebrate our ocean. So dive in and begin your aquatic discoveries!

Author: Christian Buchet
Publisher:
ISBN:
Category : Naval history, Modern
Languages : en
Pages : 1042

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How important has the sea been in the development of human history? Very important indeed is the conclusion of this ground-breaking four volume work. The books bring together the world's leading maritime historians, who address the question of what difference the sea has made in relation to around 250 situations ranging from the earliest times to the present. They consider, across the entire world, subjects related to human migration, trade, economic development, warfare, the building of political units including states and empires, the dissemination of ideas, culture and religion, and much more, showing how the sea was crucial to all these aspects of human development. The Sea in History - The Early Modern World covers the period from around the end of the fifteenth century up to the conclusion of the Napoleonic Wars in 1815. It examines the establishment and growth of 'the Atlantic World', but also considers maritime developments in the Indian Ocean, Southeast and East Asia and Africa, and highlights the continuing importance of the North Sea and the Baltic. A very wide range of maritime subjects is explored including trade, which went through a huge global expansion in this period; fishing; shipping, shipbuilding, navigation and ports; the role of the sea in the dissemination of religious ideas; the nature of life for sailors in different places and periods; and the impact of trade in particularly important commodities, including wine, slaves, sugar and tobacco. One particularly interesting chapter is on the Hanse, the important maritime commercial 'empire' based in north Germany, which extended much more widely than is often realised and whose significance and huge impact have often been overlooked. 33 of the contributions are in English; 42 are in French. CHRISTIAN BUCHET is Professor of Maritime History, Catholic University of Paris, Scientific Director of Océanides and a member of l'Académie de marine. GÉRARD LE BOUDEC is Emeritus Professor of the University of South Brittany.

Author:
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ISBN:
Category : International law
Languages : en
Pages : 930

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Author: Marie de Chantal Radimilahy
Publisher:
ISBN:
Category : Archaeology
Languages : en
Pages : 310

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Author: Jonathan Turnbull Phinney
Publisher: American Geophysical Union
ISBN: 0875903592
Category : Science
Languages : en
Pages : 251

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Published by the American Geophysical Union as part of the Coastal and Estuarine Studies, Volume 61. The effects of increased atmospheric carbon dioxide and related climate change on shallow coral reefs are gaining considerable attention for scientific and economic reasons worldwide. Although increased scientific research has improved our understanding of the response of coral reefs to climate change, we still lack key information that can help guide reef management. Research and monitoring of coral reef ecosystems over the past few decades have documented two major threats related to increasing concentrations of atmospheric CO2: (1) increased sea surface temperatures and (2) increased seawater acidity (lower pH). Higher atmospheric CO2 levels have resulted in rising sea surface temperatures and proven to be an acute threat to corals and other reef-dwelling organisms. Short periods (days) of elevated sea surface temperatures by as little as 1–2°C above the normal maximum temperature has led to more frequent and more widespread episodes of coral bleaching-the expulsion of symbiotic algae. A more chronic consequence of increasing atmospheric CO2 is the lowering of pH of surface waters, which affects the rate at which corals and other reef organisms secrete and build their calcium carbonate skeletons. Average pH of the surface ocean has already decreased by an estimated 0.1 unit since preindustrial times, and will continue to decline in concert with rising atmospheric CO2. These climate-related Stressors combined with other direct anthropogenic assaults, such as overfishing and pollution, weaken reef organisms and increase their susceptibility to disease.