Where is the Sahel located in Africa and how is it characterized in terms of climate and vegetation? Why is desertification taking place in the Sahel?...

Where is the Sahel located in Africa and how is it characterized in terms of climate and vegetation?
Why is desertification taking place in the Sahel? What human activities have made the problem worse?
Describe these activities and explain why they are happening.
What is being done about desertification in the Sahel and how successful have the efforts been to stop desertification? Will the problem be easily solved—why or why not?
What effects has desertification had on the people of the Sahel? What effects has desertification had on the environment?