* Discuss the causes and effects of desertification in the sahel (Africa)
* What are the possible solutions to desertification and in your opinion which solutions would be most effective and why
Desertification is the spreads of desert conditions into areas were not previously deserted. This process most commonly occurs in arid and semi-arid environments, the Sahel region in Africa is one of the worst affected.
Estimates suggest that 35% of the earth's land surface is at risk, and the livelihoods of 850 million people are directly affected. 75% of the world's drier lands - 45,000,000 square kilometers are affected by desertification, and every year 6,000,000 hectares of agricultural land are lost and become desert. The Sahara is thought to be advancing southwards by about 5-10 kilometers per year, which is a very considerable amount, when you remember that the Sahara is 5,150 kilometers across at its widest point http://www.yptenc.org.uk/docs/factsheets/env_facts/desertification.html
The regions it affects are Africa, the Middle East, India and Pakistan, China, Australia, the USA, Brazil, Peru and Chile in Latin America, and in European countries such as Greece, Spain and Portugal. http://www.the-human-race.com/pages/about_desertification.htm
The Sahel region is a semiarid region of north-central Africa south of the Sahara Desert. Since the 1960's, the Sahel (the semi-arid land below the Sahara that stretches from Senegal to Eritrea) has experienced a devastating drought and its population has exploded, compounding the demand for firewood, the main source of cooking fuel. The deforestation, in return has destroyed the land and made desertification worse. http://www.remibenali.com/issues-sahel/index.php
* What are the possible solutions to desertification and in your opinion which solutions would be most effective and why
Desertification is the spreads of desert conditions into areas were not previously deserted. This process most commonly occurs in arid and semi-arid environments, the Sahel region in Africa is one of the worst affected.
Estimates suggest that 35% of the earth's land surface is at risk, and the livelihoods of 850 million people are directly affected. 75% of the world's drier lands - 45,000,000 square kilometers are affected by desertification, and every year 6,000,000 hectares of agricultural land are lost and become desert. The Sahara is thought to be advancing southwards by about 5-10 kilometers per year, which is a very considerable amount, when you remember that the Sahara is 5,150 kilometers across at its widest point http://www.yptenc.org.uk/docs/factsheets/env_facts/desertification.html
The regions it affects are Africa, the Middle East, India and Pakistan, China, Australia, the USA, Brazil, Peru and Chile in Latin America, and in European countries such as Greece, Spain and Portugal. http://www.the-human-race.com/pages/about_desertification.htm
The Sahel region is a semiarid region of north-central Africa south of the Sahara Desert. Since the 1960's, the Sahel (the semi-arid land below the Sahara that stretches from Senegal to Eritrea) has experienced a devastating drought and its population has exploded, compounding the demand for firewood, the main source of cooking fuel. The deforestation, in return has destroyed the land and made desertification worse. http://www.remibenali.com/issues-sahel/index.php