61. Convention To Combat Desertification Purpose of meeting was to discuss the problem of land degradation and to offer suggestions to prevent this phenomena. Page includes list of participating countries and their ideas. Took place 29 September - 10 October 1997, Rome Italy. http://www.iisd.ca/ccdcop1.html

62. Desertification - Definition Of Desertification By The Free Online Dictionary, T de sert i fi ca tion (dz r t-f-k sh n) n. The transformation of arable or habitable land to desert, as by a change in climate or destructive land use. http://www.thefreedictionary.com/desertification

63. Bienvenue à L'OSS - Welcome To OSS - Accueil Details about mission, objectives and structure of OSS, an organization striving to build up an African arena for cooperation and exchange to combat desertification and poverty. Available in English and French. http://www.oss-online.org/

Fr En Accueil Actualité Comment l’adaptation aux changements climatiques contribue à la réduction de la pauvreté Lire la suite... M. Mustapha Besbes parle du projet SASS de l’OSS Lire la suite... ... Le Président de la République tunisienne souligne l’apport de l’OSS Dans e Lire la suite... M. Philippe-Olivier B. Conseiller d'ambassade de la Confédération Suisse effectue une visite à l'OSS Lire la suite... Formation : suivi-évaluation de la mise en œuvre de l’UNCCD en Afrique du Nord ... Horaire d'été A partir du 1 er Lire la suite... Nous tissons des partenariats pour le développement durable en Afrique circum-saharienne. Nous travaillons de concert avec nos membres et nos pairs sur les questions liées à la gestion de l'eau, la dégradation des sols et les impacts d'un climat en mutation. Nos publications par thème Eau Toutes les publications Terre Intiative Grande Muraille Verte du Sahara... Toutes les publications Climat Toutes les publications Notre bulletin d'information Agenda Réunion du bureau de la COP9 15 - 16 novembre 2010, Bonn, Allemagne.

64. Desertification The Environment A Global Challenge is the most comprehensive resource on the environment available online. With 400 articles discussing everything from environmental economics http://library.thinkquest.org/26026/Science/desertification.html

Desertification is the expansion of desert lands into previously non-desert areas. The process occurs due to both natural and human causes. Deserts occur anywhere where there is less than 10 inches of rainfall each year. If an area receives only slightly more than this, its ecosystem is fragile and is a candidate for desertification. Desertification at Work. Photo Credit: Olafur Arnalds Long droughts can cause desertification to take place by removing the soil. If humans cause the loss of the soil, such as by overgrazing, over-cultivation, deforestation irrigation , and excessive plowing, desertification can follow. In many developing countries, problems such as high population growth and poor land use are causing desertification. Presently, desertification is occurring with greatest rapidity in the African Sahel. The desertification process can be a catastrophe for the inhabitants of an area. By preventing the growing of food, desertification can lead to famine and poverty. Already desertification has ruined huge amounts of land. Across the world, the total amount of land that has been lost is about equal to the size of Brazil (2 billion acres or 810 million hectares). Annually, 15 million acres (6 million hectares) are lost to desertification. Today, in most developed counties, trees are being replanted faster than they can be cut down, so desertification is not as severe a threat.

65. Deserts And Desertification About 3,6 billion of the world’s 5.2 billion hectares of useful dryland for agriculture has suffered erosion and soil degradation. In more than 100 countries, 1 billion of http://didyouknow.org/deserts/

Did you know? Fascinating facts and interesting stories Facts Fast Facts Animals History ... Deserts and desertification Desertification is devouring more than 20,000 square miles of land worldwide every year. Desertification affects 74% of the land in North America. In Africa, more than 2.4 million acres of land (73% of its drylands) are affected by desertification. water , and, of course, the animals dependent on it. According to the World Wide Fund for Nature , the world lost about 30% of its natural wealth between 1970 and 1995. Dust from deserts and drylands is blown into cities around the world. Dust from Africa reaches Europe through the Pasat wind, and even reaches US cities. Dust particles, which are less than 2,5 millionths of a metre in size, are inhaled, causing health problems and have been shown to boost death rates. Areas effected by desertification effected by desertification Desertification can be stopped, but unfortunately usually is brought to public attention when the process is well underway. Deserts are encroaching cities. Photograph by Georg Gerster. Sahara dunes tower over Nouakchott, capital of Mauritania, like a big hungry monster. Just 5,000 years ago the Sahara was covered with grasses and shrubs.

66. UN Convention To Combat Desertification Backgrounder. The United Nations Convention to Combat desertification A New Response to an AgeOld Problem. The Environmental Problem - desertification and Its Causes http://www.un.org/ecosocdev/geninfo/sustdev/desert.htm

Backgrounder The United Nations Convention to Combat Desertification: A New Response to an Age-Old Problem The Environmental Problem - Desertification and Its Causes One quarter of the earth's land is threatened by desertification, according to estimates by the United Nations Environment Programme (UNEP). The livelihoods of over 1 billion people in more than 100 countries are also jeopardized by desertification, as farming and grazing land becomes less productive. Desertification does not mean that deserts are steadily advancing or taking over neighbouring land. As defined by the UN Convention, desertification is a process of "land degradation in arid, semi-arid and dry sub-humid areas resulting from various factors, including climatic variations and human activities". Patches of degraded land may develop hundreds of kilometres from the nearest desert. But these patches can expand and join together, creating desert-like conditions. Desertification contributes to other environmental crises, such as the loss of biodiversity and global warming. Most of the endangered dryland regions lie near the world's five main desert areas: The Sonoran Desert of northwest Mexico and its continuation into the southwest United States;

67. Desertification Charney's hypothesis. There is a controversy about the advance of deserts in the world (1). There is a widespread belief that the Sahara desert is advancing into the Sahel http://www-das.uwyo.edu/~geerts/cwx/notes/chap10/desertification.html

Desertification E. Linacre and B. Geerts Charney's hypothesis There is a controversy about the advance of deserts in the world (1). There is a widespread belief that the Sahara desert is advancing into the Sahel region, for instance. The Sahel is a narrow band of West Africa between 15 -18 N, between the Sahara to the north and savannah (grass and open forest) and equatorial forest to the south. It extends from Senegal at the coast at about 15 W, across Mali and Niger, to about 15 E. It receives rainfall during a short but active wet season, from late June to mid September. It is covered by grassland and supports a pasture-based society which traditionally moved meridionally following the rains. Its northern limit may be defined by the 200 mm/a isohyet. Is the Sahara extending into the Sahel? And if so, is this because of fluctuations of rainfall (total amount, rainfall intensity, duration of wet season, …) or is it largely the result of human activities, such as overgrazing or the removal of trees for firewood? There are also the questions: Do deserts create droughts? Do droughts create deserts? In other words, is there a positive climate feedback, which accelerates land degradation? A now classic paper by Jules Charney The problem of overgrazing in the Sahel is as acute now as it was in the 1960's, yet there is no clear rainfall trend in the Sahel. The period 1930-'60 was slightly wetter than 1960-'90 in most parts of the Sahel. More significant than any trend is the occurrence of dry and wet periods, each lasting several years. The Sahel enjoyed a notably wet decade in the 1950’s, which was followed by a drought in the 70’s and 80’s (1). However, land productivity was fully recovered around 1990. So Charney's hypothesis cannot be confirmed.

68. Causes And Effects Of Desertification What Causes desertification?Overgrazing Overgrazing was not as large of a problem long ago because animals would move in response to rainfall. http://desertificationb.tripod.com/id3.html

69. Landscape And Nature Restoration WWW By MORIMOTO Created by a Kyoto professor on Aral Sea desertification, landscape ecology, and conservation. http://web.kyoto-inet.or.jp/people/yuki6270/

Welcome to my "Landscape and Nature Restoration" pages! I have moved to Kyoto University on April 1, 2001. Update: April. 1, 2001 #418 ManhaimKamogawa,14YoshidaKawara-cho,Sakyo-ku,Kyoto,JAPAN 606 Japanese / English Aral sea desertification and landscape ecology. Landscape Simulation of Man-made cut slopes:15 years after revegetation. CGs of Katsura Rikyu Imperial Garden Trees and Hanshin Great Eearthquake Disaster About the Author Related WWW Japanese Institute of Landscape Architects Lab. Landscape Architecture and Conservation, Osaka Prefecture University Japanese Society of Revegetation Technology My laboratory This homepage is just a trial! Please feel free to feed back your opinion. yuki3@skyblue.ocn.ne.jp visitors since Jan.15, 1996

70. Desertification (ecology) -- Britannica Online Encyclopedia desertification (ecology), the process by which natural or human causes reduce the biological productivity of drylands (arid and semiarid lands). Declines in productivity may be http://www.britannica.com/EBchecked/topic/159114/desertification

document.write(''); Search Site: Advanced Search With all of these words With the exact phrase With any of these words Without these words Home SHOP BROWSE BLOG ... HELP Username: Password: Remember me Forgot your password? Help Email " is the e-mail address you used when you registered. Password " is case sensitive. If you need additional assistance, please contact customer support Enter the e-mail address you used when enrolling for Britannica Premium Service and we will e-mail your password to you. desertification My Britannica CREATE MY desertificat... NEW ARTICLE ... SAVE desertification Table of Contents: desertification Article Article The global reach of desertification The global reach of desertification Causes and consequences of desertificati... Causes and consequences of desertification Four areas affected by desertification Four areas affected by desertification - Irrigated croplands Irrigated croplands - Rain-fed croplands Rain-fed croplands - Grazing lands Grazing lands - Dry woodlands Dry woodlands Solutions to desertification Solutions to desertification Related Articles Related Articles External Web sites External Web sites Citations Article The global reach of desertification Causes and consequences of desertification Four areas affected by desertification ... Citations Primary Contributors: Stuart L. Pimm

71. MEDCOASTLAND The Mediterranean scientific network research on soil degradation and conservation, land use, desertification and erosion. http://medcoastland.iamb.it

Main Menu Home Partnership Newsletters Work Packages ... Deliverables Events Kick-Off Meeting Adana Workshop Announcement Program Report Marrakech Workshop Announcement Program Report Alexandria Workshop Announcement Program Report Bari Workshop Announcement Program Report Malta Workshop Announcement Program Report Euro-Mediterranean Conference Announcement Programme Report Tunisia Conference Announcement Programme Report MEDCOASTLAND Thematic Network Medcoastland is a thematic network project funded by the European Commission (EC), within the 5 th framework program for the international cooperation with Mediterranean countries (INCO-MED), aiming at the Mediterranean coordination and dissemination of land conservation management to combat land degradation for the sustainable use of natural resources in the Mediterranean coastal zones. Objectives Structure Activities Main Targets ... Partnership Overall objective The overall objective of MEDCOASTLAND is to contribute to sustainable development, planning and management of natural resources in Mediterranean coastal areas, with particular regard to Land and Soil Degradation and Conservation Management. Specific objectives Implementing an effective co-ordination and dissemination of research, studies and projects dealing with land degradation and soil conservation in Mediterranean countries.

72. National Geographic: Eye In The Sky--Deforestation Shows photographs, satellite images, and video clips of deforestation and desertification. http://www.nationalgeographic.com/eye/deforestation/deforestationintro.html

BYPASS INTRODUCTION BYPASS INTRODUCTION

73. Eden Foundation Working to find underexploited, edible trees and bushes and use them for sustainable agriculture. Includes information on their seed projects in Niger, the problem of desertification, and how to help. Dutch, English, French, German, Norwegian, Swedish http://www.eden-foundation.org/

Eden Foundation Founded 1985 in Sweden Active in Tanout, Niger, since 1987 auf deutsch nederlands Friends of Eden Eden's philosophy There are 250,000 known plant species in the world, but only 20 of them provide 90% of our food. We believe that the key to prosperity for the poor lie in underexploited, edible trees and bushes - the lost treasures of Eden. Our mission is to find those treasures and bring them to people who really need them. Welcome to Eden. Welcome to us! Site map Philosophy Project ... Contact Hosted by Terratel

74. Welcome To SEPADO - SOMALIA Somalia Environmental Protection and Anti-desertification Organisation. A voluntary Non-governmental Organization to combat environmental problems of the war-torn Somalia. http://members.tripod.com/~sepado/

Build your own FREE website at Tripod.com Share: Facebook Twitter Digg reddit document.write(lycos_ad['leaderboard']); document.write(lycos_ad['leaderboard2']); alert("Attention!!!! This Home Page is best viewed with Micro-Soft Internet Explorer 3 and greater (Resolution 800 x 600 Pixels). If time allows you, Grateful if you could sign our Guest Book and leave your comments.Thank you.") SOMALI ENVIRONMENTAL PROTECTION AND ANTI-DESERTIFICATION ORGANISATION SEPADO P.O.BOX 27750, Abu Dhabi United Arab Emirates (UAE) Tel: +971 -2 - 787 442 Fax: +971- 187-02215 243 Somalia Environmental Protection and Anti-desertification Organisation (SEPADO) is legally constituted and registered as voluntary Non-governmental Organisation, formed during the summer of 1996 to combat environmental problems of the war-torn Somalia. Due to the lack of central government in Somalia during the last 6 years is causing the environment of Somalia to suffer greatly as a result of human destruction. The environmental condition of Somalia is catastrophic and deteriorating day after day. Following are major threats facing the environment in Somalia: 1. Burning of the forests and uprooting of all big trees for charcoal which is exported to Foreign countries for hard currency

75. African Centre For Technology Studies (ACTS) | Harnessing Science And Technology An international inter-governmental policy research and training organization located in Nairobi, Kenya. The Centre s activities focus on the implementation of Agenda 21 and related conventions on biological diversity, climate change and desertification. http://www.acts.or.ke/

Contact Us Log in Account Management About ACTS ... Biodiversity and Natural Resource Management This programme is the product of... more... Energy and Water Security The programme seeks to respond to the increasing challenges of... more... Agriculture and Food Security Goal: Policies that improve agriculture production and food security in... more... Regional Workshop on Community Based Adaptation to Climate Change ( CBAA), 8th -9th November 2010: Hilton Hotel Nairobi Community Based Adaptation to Climate Change (CBAA) project, African Centre for Technology Studies (ACTS), will hold a regional workshop on Community Adaptation to Climate Change. The workshop is scheduled to be in Nairobi . ACTS in partnership with colleagues in Eastern and Southern Africa, Europe and South Asia are undertaking an action research, testing tools for community adaptation, knowledge generation and capacity building project on Community-Based Adaptation to Climate Change in Africa (CBAA) The Sixth Pan-Commonwealth Forum on Open Learning (PCF6)  the Forum 24 - 28 November, 2010:Le Méridien, Kochi , Kerala , India The Forum brings together practitioners, researchers, planners and policy makers in the fields of open and distance learning and development from over 70 countries. It provides opportunities to share experience and expertise and to contribute to future policy and provision. Charles Tonui, an ACTS Researcher will be in attendance

76. Earthshots: Satellite Images Of Environmental Change: Southern Mauritania From the U.S. Geological Survey. 1972-1990 Landsat images of Senegal-Mauritania showing desertification. http://edcwww.cr.usgs.gov/earthshots/slow/Mauritania/Mauritania

77. UNCCD - United Nations Convention To Combat Desertification A report on land degradation assessment and control in the country. Includes organizational information, details on action programs and annual national reports. Acrobat Reader http://www.unccd.int/php/countryinfo.php?country=GNB

78. UNCCD - United Nations Convention To Combat Desertification A report on land degradation assessment and control in the country. Includes organizational information, details on action programs and annual national reports. Acrobat Reader http://www.unccd.int/php/countryinfo.php?country=MOZ

79. UNCCD - United Nations Convention To Combat Desertification A report on land degradation assessment and control in the country. Includes organizational information, details on action programs and annual national reports. Acrobat Reader http://www.unccd.int/php/countryinfo.php?country=STP

80. Site De Riad BENSOUIAH - Accueil Analyse des probl mes de la d sertification, qui suscitent une crise pastorale. http://site.voila.fr/desertification

Vous êtes le visiteur La gestion des ressources naturelles et la préservation de l’équilibre de l’écosystème sont devenus au fil des années l’outil principal de l’évaluation et de l’exploitation du milieu naturel. Les différentes méthodes adoptées jusqu’à nos jours ont donné des résultats plus ou moins importants selon les pays et les régions. Cela est dû d’une part à la volonté des Pouvoirs Publics a appliqué telle ou telle loi mais aussi aux pratiques de l’homme. Au temps où dans les pays développés on assiste à la création des Organisations Non Gouvernementales (O.N.G.) et tout type d’associations de sauvegarde de et de préservation de l’environnement. Au temps où celles-ci multiplient ces actions pour inciter les Etats à adopter des techniques non dégradantes de l’environnement, les pays du tiers monde sont par contre, confrontés à plusieurs types de dégradation, chapeautés par celle du niveau de vie des populations. Ainsi, dans le souci de rattraper le train de développement, ces pays usent de tous les moyens pour atteindre leurs objectifs, sans prendre en compte l’état de l’environnement. Les données économiques mondiales, vont sans doute creuser l’écart entre les pays développés et ceux du tiers monde. On assistera probablement, si les choses ne changent pas, à la création de deux pôles, l’un développé et sain, situé dans la partie Nord du globe terrestre et l’autre non développé, pauvre et malade. Ce dernier localisé dans la rive Sud, consistera en quelques sortes, le dépôt des restes et déchets toxiques et polluants, soumettant de ce fait, son environnement à un risque élevé de dégradation.

A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z

Page 4     61-80 of 92    Back | 1  | 2  | 3  | 4  | 5  | Next 20