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Sudan
24-4-16 Sudan: the Proxy War the World is Ignoring - Waro > .Africa - MENA & "Dark Continent" - Graydations >> .
North Africa or Northern Africa (MENA = "Middle East and North Africa") region encompassing the northern portion of the African continent. There is no singularly accepted scope for the region, and it is sometimes defined as stretching from the Atlantic shores of Mauritania in the west, to Egypt's Suez Canal and the Red Sea in the east. Varying sources have limited it to the countries of Algeria, Libya, Morocco, and Tunisia, a region that was known by the French during colonial times as "Afrique du Nord" and is known by Arabs as the Maghreb ("West", The western part of Arab World). The most commonly accepted definition includes Morocco, Algeria, Tunisia, Libya, Egypt, and Sudan, the 6 countries that shape the top North of the African continent. Meanwhile, "North Africa", particularly when used in the term Middle East and North Africa (MENA), often refers only to the countries of the Maghreb. North Africa also includes the disputed territory of Western Sahara between Morocco and the Saharawi Republic.
Since probably 3500 BCE, the Saharan and sub-Saharan regions of Africa have been separated by the extremely harsh climate of the sparsely populated Sahara, forming an effective barrier interrupted by only the Nile in Sudan, though navigation on the Nile was blocked by the river's cataracts. The Sahara pump theory explains how flora and fauna (including Homo sapiens) left Africa to penetrate the Middle East and beyond. African pluvial periods are associated with a Wet Sahara phase, during which larger lakes and more rivers existed.
The desert comprises much of North Africa, excluding the fertile region on the Mediterranean Sea coast, the Atlas Mountains of the Maghreb, and the Nile Valley in Egypt and Sudan. It stretches from the Red Sea in the east and the Mediterranean in the north to the Atlantic Ocean in the west, where the landscape gradually changes from desert to coastal plains. To the south, it is bounded by the Sahel, a belt of semi-arid tropical savanna around the Niger River valley and the Sudan Region of Sub-Saharan Africa. The Sahara can be divided into several regions, including the western Sahara, the central Ahaggar Mountains, the Tibesti Mountains, the Aïr Mountains, the Ténéré desert, and the Libyan Desert.
For several hundred thousand years, the Sahara has alternated between desert and savanna grassland in a 20,000 year cycle caused by the precession of the Earth's axis as it rotates around the Sun, which changes the location of the North African Monsoon. The area is next expected to become green in about 15,000 years (17,000 CE).
The Sahel ("coast, shore") is the ecoclimatic and biogeographic realm of transition in Africa between the Sahara to the north and the Sudanian savanna to the south. Having a semi-arid climate, it stretches across the south-central latitudes of Northern Africa between the Atlantic Ocean and the Red Sea.
The Sahel part of Africa includes from west to east parts of northern Senegal, southern Mauritania, central Mali, northern Burkina Faso, the extreme south of Algeria, Niger, the extreme north of Nigeria, the extreme north of Cameroon and Central African Republic, central Chad, central and southern Sudan, the extreme north of South Sudan, Eritrea and the extreme north of Ethiopia.
Historically, the western part of the Sahel was sometimes known as the Sudan region ("lands of the Sudan"). This belt was roughly located between the Sahara and the coastal areas of West Africa.
Sub-Saharan Africa is, geographically and ethnoculturally, the area of the continent of Africa that lies south of the Sahara. According to the United Nations, it consists of all African countries and territories that are fully or partially south of the Sahara. While the United Nations geoscheme for Africa excludes Sudan from its definition of sub-Saharan Africa, the African Union's definition includes Sudan but instead excludes Mauritania.
It contrasts with North Africa, which is frequently grouped within the MENA ("Middle East and North Africa") region, and most of whose states are members of the Arab League (largely overlapping with the term "Arab world"). The states of Somalia, Djibouti, Comoros, and the Arab-majority Mauritania (and sometimes Sudan) are, however, geographically considered part of sub-Saharan Africa, although they are members of the Arab League as well. The United Nations Development Program lists 46 of Africa's 54 countries as "sub-Saharan", excluding Algeria, Djibouti, Egypt, Libya, Morocco, Somalia, Sudan and Tunisia.
The Sahara ('the Greatest Desert') is a desert on the African continent. With an area of 9,200,000 square kilometres (3,600,000 sq mi), it is the largest hot desert in the world and the third largest desert overall, smaller only than the deserts of Antarctica and the northern Arctic.
The desert comprises much of North Africa, excluding the fertile region on the Mediterranean Sea coast, the Atlas Mountains of the Maghreb, and the Nile Valley in Egypt and Sudan. It stretches from the Red Sea in the east and the Mediterranean in the north to the Atlantic Ocean in the west, where the landscape gradually changes from desert to coastal plains. To the south, it is bounded by the Sahel, a belt of semi-arid tropical savanna around the Niger River valley and the Sudan Region of Sub-Saharan Africa. The Sahara can be divided into several regions, including the western Sahara, the central Ahaggar Mountains, the Tibesti Mountains, the Aïr Mountains, the Ténéré desert, and the Libyan Desert.
For several hundred thousand years, the Sahara has alternated between desert and savanna grassland in a 20,000 year cycle caused by the precession of the Earth's axis as it rotates around the Sun, which changes the location of the North African Monsoon. The area is next expected to become green in about 15,000 years (17,000 CE).
The Sahel part of Africa includes from west to east parts of northern Senegal, southern Mauritania, central Mali, northern Burkina Faso, the extreme south of Algeria, Niger, the extreme north of Nigeria, the extreme north of Cameroon and Central African Republic, central Chad, central and southern Sudan, the extreme north of South Sudan, Eritrea and the extreme north of Ethiopia.
Historically, the western part of the Sahel was sometimes known as the Sudan region ("lands of the Sudan"). This belt was roughly located between the Sahara and the coastal areas of West Africa.
Sub-Saharan Africa is, geographically and ethnoculturally, the area of the continent of Africa that lies south of the Sahara. According to the United Nations, it consists of all African countries and territories that are fully or partially south of the Sahara. While the United Nations geoscheme for Africa excludes Sudan from its definition of sub-Saharan Africa, the African Union's definition includes Sudan but instead excludes Mauritania.
It contrasts with North Africa, which is frequently grouped within the MENA ("Middle East and North Africa") region, and most of whose states are members of the Arab League (largely overlapping with the term "Arab world"). The states of Somalia, Djibouti, Comoros, and the Arab-majority Mauritania (and sometimes Sudan) are, however, geographically considered part of sub-Saharan Africa, although they are members of the Arab League as well. The United Nations Development Program lists 46 of Africa's 54 countries as "sub-Saharan", excluding Algeria, Djibouti, Egypt, Libya, Morocco, Somalia, Sudan and Tunisia.
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