Part 1 of Essay
As we approach the 21st century, the environmental problems that impact our very survival require urgent attention. Responsible governments and citizens can no longer doubt the seriousness of these issues. One issue that should be of great global concern is desertification. Desertification directly affects the livelihoo ....

Part 2 of Essay
.... drylands have been central in the evolution of mankind. These are the lands that sustained our transition from a hunting/gathering to pastoralism and agriculture (Kaya and Yokobiri, 1997). Drylands still provide much of our grain and livestock. These areas cover more than 40 percent of the world’s land surface. As these areas decrease in size, so does the reliability of the land to support the human population. In some areas, desertification is occurring to such a degree that some lands can no longer sustain ....