The poor living in irrigated areas are at great risk because of the growing scarcity and competition for water, and the overexploitation of groundwater resources.
Vulnerability to desertification in Africa is assessed using the information on soils, climate, and the previously evaluated land resource stresses.
The continent of Africa contains one-fifth of the world's surface and has some of the world's largest physical features, including deserts. The Sahara, which is located in the northern part of Africa, is the largest desert in the world.
This guide to the United Nations Convention to Combat Desertification (UNCCD) first discusses the issues surrounding the world's land degradation problem and what led to the foundation of the Convention.