Transcript Slide 1

The “Green Line” is referred
to as a line in the Sahara
desert where the desert
ends and farm land begins.
This is an image from
space that shows the Nile
“Green Line.”
• Sahel: the “shore” or beltway is a semi-tropical
region of semi-arid land that boarders the
Sahara from the Red Sea to the Atlantic Ocean.
Desertification, or when land
that was once productive
(farmland, grassland, shrub)
becomes Desert is a major
issue in the Sahel Zone.
Deforestation, or loss of
trees and plants, is one of
the major causes of
Desertification in the
Sahel.
Desertification:
Causes Causes
Desertification:
Droughts, or long periods of little or no rainfall are
more and more common in the Sahel.
Droughts lead to Desertification and Deforestation.
Droughts can also cause Famine, or periods of
starvation, for the people in Africa.
Lake Victoria
Lake
Tanganyika
African Rivers
Nile River: Ethiopia, Sudan, Egypt
• Longest river in the world
• Used for transportation and
irrigation
• Most Egyptians live along its
banks
Niger River: Sahel, Nigeria
• Transportation route
• “Oil Delta” rich in petroleum
• Silt enriches soil for farming
Congo River: Democratic Republic
of the Congo
• Irrigation & fishing
• Transportation to interior of
Africa
– Timber from rainforest
– People use to search for work
Niger River
Nile River
Congo River
Nile River
Niger River
Congo River
Water Maters
Limited water in many parts
of Africa
• Growing population
• Little clean water
Pollution
• Factories
– Built to improve economy
– Factory wastes flushed into
streams and rivers
• Human waste
• Animal waste
• Bacterial pollution
– Hot climate makes it easy for
bacteria and parasites to
survive