Niger or the Niger (niːˈʒɛər,_ˈnaɪdʒər , niʒɛʁ), officially the Republic of the Niger (République du Niger; Jamhuriyar Nijar), is a landlocked country in West Africa. It is a unitary state bordered by Libya to the northeast, Chad to the east, Nigeria to the south, Benin and Burkina Faso to the southwest, Mali to the west, and Algeria to the northwest. It covers a land area of almost , making it the largest landlocked country in West Africa. Over 80% of its land area lies in the Sahara. Its predominantly Muslim population of about million live mostly in clusters in the south and west of the country. The capital Niamey is located in Niger's southwest corner.
According to Multidimensional poverty index (MPI) report of 2023, Niger is one of the poorest countries in the world. Some non-desert portions of the country undergo periodic drought and desertification. The economy is concentrated around subsistence agriculture, with some export agriculture in the less arid south, and export of raw materials, including uranium ore. It faces challenges to development due to its landlocked position, desert terrain, low literacy rate, jihadist insurgencies, and the world's highest fertility rates due to birth control not being used and the resulting rapid population growth.
Its society reflects a diversity drawn from the independent histories of some ethnic groups and regions and their period living in a single state. Historically, Niger has been on the fringes of some states. Since independence, Nigeriens have lived under five constitutions and three periods of military rule. After the military coup in 2010, Niger became a multi-party state. A majority of the population lives in rural areas.
The name comes from the Niger River which flows through the west of the country. The origin of the river's name is uncertain. Alexandrian geographer Ptolemy wrote descriptions of the wadi Gir (in neighbouring modern Algeria) and the Ni-Gir ("Lower Gir") to the south, possibly referring to the Niger River.
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This course examines growth from various angles: economic growth, growth in the use of resources, need for growth, limits to growth, sustainable growth, and, if time permits, population growth and gro
Explores the political dynamics and challenges faced by African countries in the contemporary context.
Explores quotients of groups by equivalence relations and the conditions for well-defined sets.
Explores the general solution of motion in a central force field, conservation of energy, Kepler's problem, and trajectory.
Mali (ˈmɑːli; mali), officially the Republic of Mali, is a landlocked country in West Africa. Mali is the eighth-largest country in Africa, with an area of over . The country is bordered on the north by Algeria, on the east by Niger, on the northwest by Mauritania, on the south by Burkina Faso and Côte d'Ivoire, and on the west by Guinea and Senegal. The population of Mali is million. 67% of its population was estimated to be under the age of 25 in 2017. Its capital and largest city is Bamako.
The Sahara (səˈhɑːrə, səˈhærə) is a desert on the African continent. With an area of , 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 name "Sahara" is derived from the Arabic word for "desert" in the feminine irregular form, the singular (صحراء //ˈSaHra), plural (صَحَارَى //ˈSaHaaraa), (صَحَار), (صَحْرَاوَات), (صَحَارِي).
Chad (tʃæd ), officially the Republic of Chad, is a landlocked country at the crossroads of North and Central Africa. It is bordered by Libya to the north, Sudan to the east, the Central African Republic to the south, Cameroon to the southwest, Nigeria to the southwest (at Lake Chad), and Niger to the west. Chad has a population of 16 million, of which 1.6 million live in the capital and largest city of N'Djamena. Chad has several regions: a desert zone in the north, an arid Sahelian belt in the centre and a more fertile Sudanian Savanna zone in the south.
Dans l’Ouest lausannois, comme dans de nombreuses agglomérations, la problématique de la gestion de l’eau face au réchauffement climatique est au cœur des préoccupations. Cela se traduit par des projets de renaturation, de gestion de l’eau de pluie sur sit ...
20x20x20 est un format de discussions avec les professeures invitées en architecture à l’EPFL — deux présentations de 20 minutes par deux professeures invitées suivies d’une discussion de 20 minutes. Dans le cadre du programme “Sometimes Doing Nothing Lead ...
La Communauté d’études pour l’aménagement du territoire (CEAT) à l’Ecole polytechnique fédérale de Lausanne (EPFL) a été mandatée par l’Etat du Valais, via son Service du développement territorial, pour la réalisation d’une étude sur les pratiques de la co ...