SAHEL (OR SAHIL) MEANS "edge or border" in Arabic.
The Sahel is a semiarid transitional zone between the southern edge of the SAHARA DESERT and the humid savannah zone of Africa.
On average it is 187 mi (300 km) wide.
It has a fragile ecology but is also diverse in plant and animal species.
The Sahel stretches across North Africa from the ATLANTIC OCEAN to SUDAN.
Some geographers extend the Sahel to include the dry regions of ETHIOPIA, KENYA, and SOMALIA.
It is a 3,107-mi- (5,000-km-) long belt of land across the entire African continent.
It is an area into which the Sahara has been slowly expanding.
Where it merges with the Sahara, the rainfall drops to 7.9 in (20 cm).
Where the Sahel merges with the humid savannas, rainfall has risen to 23.67 or 27.5 in (60 to 70 cm).
The chief characteristic of the Sahel is its semiarid environment coupled with periodic droughts.
Some geographers divide the Sahel into a broader, dryer northern zone and a wetter southern zone.
The Sahel runs east and west through large parts of SENEGAL, MAURITANIA, MALI, BURKINA FASO, NIGER, NIGERIA, CHAD, Sudan, and then to the HORN OF AFRICA, including Ethiopia, ERITREA, DJIBOUTI, Kenya and Somalia.
More specifically it runs through northern Senegal, southern Mauritania, to the great bend in the NIGER RIVER in Mali, then through Burkina Faso, Niger, Nigeria, Chad, and Sudan.
Much of it is flat plains with great stretches located on elevated plateaus.
Beginning in the 1960s, serious droughts struck the Sahel.
The area has been especially dry since 1968.
Hundreds of thousands of people in the Sahel have died as a result of crop failures caused by drought.
In the 1970s, the suffering of the people in the area attracted international attention.
The climate of the Sahel is normally arid.
The rainfall varies, which makes agriculture difficult.
Most of the vegetation is grasses and shrubs.
The rain usually comes from June to September, though the average rainfall has been declining over the last five decades, which has allowed the Sahara to expand.
Most of the people who live in the Sahel are nomadic herders.
The drop in rainfall combined with overgrazing have contributed to increased DESERTIFICATION.
Compounding the problems of the Sahel is the fact that populations are rapidly increasing.
The population growth rates are some of the highest in the world.
The total population of the Sahel countries is estimated to be around 50 million people excluding those counties east of Sudan.
They are among the poorest in the world.
The Sahel is also a religious transition zone between ISLAM in the north and traditional African and Christianity in the south.
- The country with the cheapest duty free in Europe has been revealed
"The quotation for goods at Spanish duty free shops turned out to be approximately 14% lower than any other European airport as Skyskanner reports.
To process a comparative analysis the prices for the most popular goods at duty free shops were taken into account: alcohol, perfumery products, cigarettes and sweets. The price for alcohol products strongly varies depending on the airport. Therefore, the prices may vary up to 50% in different airports.
You can save a lot of money buying perfumery products when you leave Spain. For instance, you can buy Burberry perfume for less than 80 euro in Spanish duty-frees, whereas in Geneva the price reaches 115 euro.
It is interesting to know that the prices at duty free shops in Madrid airports are three times less than in Paris airports. "
- Cardiff hosts Champions League final
"The final European club tournament football match 2017 will be held in the capital city in Wales. The final match will be held at the end of May at the Millennium Stadium with the max capacity of 74, 000 fans located in the central part of Cardiff.
The decision was taken at UEFA Executive Committee meeting in Prague.
European League final, the second leading tournament will be held in Stockholm at Friends Arena Stadium with a total capacity of about 50, 000 people.
The Super Cup match will stage in Skopje and will host Champions League and European League winners. "