Lake Chad Versus the Sahara Desert PDF Download

Author: Sylvia K. Sikes
Publisher:
ISBN: 9780413275905
Category : Chad, Lake
Languages : en
Pages : 362

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Author: Jacques C.J. Nihoul
Publisher: Springer Science & Business Media
ISBN: 9400709676
Category : Science
Languages : en
Pages : 383

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Book Description
There are incentive indications that the growth of human population, the increasing use and abuse of natural resources combined with climate changes (probably due to anthropic pollution, to some extent) exert a considerable stress on closed (or semi-enclosed) seas and lakes. In many regions of the world, marine and lacustrine hydrosystems are (or have been) the object of severe or fatal alterations, from changes in regional hydrological regimes and/or modifications of the quantity or the quality of water resources associated with (natural or man-made) land reclamation, deterioration of geochemical balances (increased salinity, oxygen's depletion .. . ), mutations of ecosystems (eutrophication, dramatic decrease in biological diversity ... ) to geological disturbances and to the socio-economic perturbations which have been - or may be in the near future - the consequences of them. Seas and lakes are dying all over the world and some may be regarded as already dead and there is an urgent need to try to understand how this is happening and identify the causes of the observed mutations, weighing the relative effects of climatic evolution and anthropic interferences. This book is the outcome of the NATO Advanced Research Workshop, held in Liege in May 2003. The Workshop was organized at th the University of Liege as a follow on meeting to the 35 International Liege Colloquium on Ocean Dynamics, dedicated in 2003 to Dying and Dead Seas. The book contains the synthesis of the lectures given by 16 main speakers during the ARW.

Author: United Nations Environment Programme. Division of Early Warning and Assessment
Publisher: UNEP/Earthprint
ISBN: 9280725130
Category : Science
Languages : en
Pages : 44

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This publication contains a number of case studies with satellite data taken over various time periods to give environmental assessments and early warning information about the potential consequences of development planning both for humans and the natural environment. The case studies cover: the Itaipâ Dam and Iguazâ River; Papua (Irian Jaya) in Indonesia; Lake Chad; Atatèrk Dam and Harran Plain; and the Sundarbans.

Author: Brahma Chellaney
Publisher: Rowman & Littlefield
ISBN: 1442249285
Category : Political Science
Languages : en
Pages : 425

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Book Description
Now in an updated edition, this pioneering and authoritative study considers the profound impact of the growing global water crunch on international peace and security as well as possible ways to mitigate the crisis. Although water is essential to sustaining life and livelihoods, geostrategist Brahma Chellaney argues that it remains the world’s most underappreciated and undervalued resource. One sobering fact is that the retail price of bottled water is already higher than the international spot price of crude oil. But unlike oil, water has no substitute, raising the specter of water becoming the next flashpoint for conflict. Water war as a concept may not mesh with the conventional construct of warfare, especially for those who plan with tanks, combat planes, and attack submarines as weapons. Yet armies don’t necessarily have to march to battle to seize or defend water resources. Water wars—in a political, diplomatic, or economic sense—are already being waged between riparian neighbors in many parts of the world, fueling cycles of bitter recrimination, exacerbating water challenges, and fostering mistrust that impedes broader regional cooperation and integration. The danger is that these water wars could escalate to armed conflict or further limit already stretched food and energy production. Writing in a direct, nontechnical, and engaging style, Brahma Chellaney draws on a wide range of research from scientific and policy fields to examine the different global linkages between water and peace. Offering a holistic picture and integrated solutions, his book has become the recognized authority on the most precious natural resource of this century and how we can secure humankind’s water future.

Author: Linda L. Lowry
Publisher: SAGE Publications
ISBN: 1483368939
Category : Business & Economics
Languages : en
Pages : 1593

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Book Description
Taking a global and multidisciplinary approach, The SAGE International Encyclopedia of Travel and Tourism examines the world travel and tourism industry, which is expected to grow at an annual rate of four percent for the next decade.

Author: United States. Bureau of International Commerce
Publisher:
ISBN:
Category : Commerce
Languages : en
Pages : 696

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Author:
Publisher:
ISBN:
Category : United States
Languages : en
Pages : 650

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Author: Frank Moore Colby
Publisher:
ISBN:
Category : Education
Languages : en
Pages : 984

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Author: Jasper Knight
Publisher: Springer Nature
ISBN: 3031471601
Category : Science
Languages : en
Pages : 231

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Book Description
This book describes the Central Sahara region, bringing together an unprecedented combination of diverse and often historic research published in different languages in order to describe its varied landscapes and landforms. The Central Sahara region consists of Libya, Algeria, Mali, Niger and Chad, countries that share similar landscape histories and common landscape traits, including massifs, sand seas, paleowater features and large depressions. Furthermore, human settlement of this region goes hand-in-hand with climate and environmental changes and landscape evolution during the Holocene and earlier; hence, Central Saharan landscapes and landforms provide valuable insights into landscape–human relationships over long timescales. The book offers a comprehensive yet accessible reference source, drawing on both past and present interdisciplinary research and gathering the insights of authors from many different countries to explore a region that has largely been overlooked in available literature.

Author: Rama Publishers
Publisher: Rama Publishers
ISBN:
Category :
Languages : en
Pages : 202

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Book Type - Practice Sets / Solved Papers About Exam- The exam is divided into 2 levels or papers. Paper I is for candidates who wish to teach classes 1 to 5 and Paper II is for candidates who wish to teach classes 6 to 8. In case candidates wish to qualify to teach classes 1 – 8, they can appear for both papers in CTET. Exam pattern Both Paper I & II contain a total of 150 multiple-choice questions (MCQs) each. 1 mark is awarded to correct answers and there is no negative marking for incorrect answers. Paper 1 consists of 5 sections namely Child Development and Pedagogy, Language I (compulsory), Language II (compulsory), Mathematics, Environmental Studies while Paper 2 consists of 4 sections namely Child Development and Pedagogy, Language I (compulsory), Language II (compulsory), Mathematics. Candidates have to choose between Mathematics & Science and Social Studies in Paper 2. Duration of Paper 1 is 2.5 hours (150 minutes) and for Paper 2 is 2.5 hours (150 minutes) Negative Marking – NO Exam Level - National Level Conducting Body - Central Board of Secondary Education (CBSE).