Sahel

Sahel
Throughout the Sahel, rammed earth construction is widespread, as exemplified by this medieval mosque in Burkina Faso
Sahel savanna and its namesake acacias at the beginning of the short summer rainy season
The Sahel region in Africa: a belt up to 1,000 km (620 mi) wide that spans 5,400 km (3,360 mi) from the Atlantic Ocean to the Red Sea
Ecology
RealmAfrotropical
BiomeTropical and subtropical grasslands, savannas, and shrublands
Borders
List
  • East Saharan montane xeric woodlands
  • East Sudanian savanna
  • Ethiopian montane forests
  • Inner Niger Delta
  • Lake Chad flooded savanna
  • South Saharan steppe and woodlands
  • Sudd flooded grasslands
  • West Saharan montane xeric woodlands
  • West Sudanian savanna
AnimalsCamels, horses
Bird speciesMigratory birds
Mammal speciesOryx, gazelles, African buffalo
Geography
Area3,053,200 km2 (1,178,800 sq mi)
Countries
Elevation200 and 400 meters (660 and 1,310 ft)
RiversSenegal, Niger, Nile
Climate typeTropical savanna climates (Aw), Hot Semi-arid (BSh), Hot Desert (BWh)

The Sahel region (/səˈhɛl/; from Arabic ساحل (sāḥil [ˈsaːħil]) 'coast, shore'), or Sahelian acacia savanna, is a biogeographical region in Africa. It is the transition zone between the more humid Sudanian savannas to its south and the drier Sahara to the north. The Sahel has a hot semi-arid climate and stretches across the southernmost latitudes of North Africa between the Atlantic Ocean and the Red Sea. Although geographically located in the tropics, the Sahel does not have a tropical climate.

Especially in the western Sahel, there are frequent shortages of food and water due to its very high government corruption and the semi-arid climate. This is exacerbated by very high birthrates across the region, resulting in a rapid increase in population. In recent times,[1] various coups, insurgencies, terrorism[2] and foreign interventions have taken place in many Sahel countries, especially across former Françafrique.

In addition to its ecological and climatic significance, the Sahel is also considered a geopolitical space, shaped by internal instability and external strategic competition.[3][4][5]

  1. ^ "Violent Extremism in the Sahel | Global Conflict Tracker". www.cfr.org. Retrieved 14 January 2025.
  2. ^ Cite error: The named reference :0 was invoked but never defined (see the help page).
  3. ^ Clingendael Institute, "The Sahel’s New Geopolitics", June 2024.
  4. ^ Vision of Humanity, "Democracy vs. Security: The Sahel’s Geopolitical Realignment", 25 September 2024.
  5. ^ The Washington Post, "Crossroads of Conflict", 19 February 2025.