Desertification, overexploitation, or soil degradation are some of the topics addressed in this new monograph on the current state of the world's drylands.
Livestock grazing modifies and even degrades arid ecosystems, which threatens the sustainability of livestock farming itself.
Desertification is a global environmental challenge requiring a response validated by both science and politics.
The texts in this monograph try to help us to understand the importance of drylands and the need for their development go hand in hand with the protection of their resources.
Between 1925 and 1975, the Sahara desert grew, especially southward, about 645,000 km2, and in some parts of Sudan, the southern boundary of the desert moved 310,000 km2 between 1958 and 1975. This development was most important in the sixties and