Chad Basin depth of . Due to heavy pumping, since the start of the 1980s the water levels in both aquifers has been lowered, and some wells no longer function. There is a third, much lower, aquifer in Bima Sandstones that lies at a depth of . Both the current and historical areas of the basin and the mega-basin contain concentrations of fossils. Fossil-fuels deposits in the area are estimated to exceed a trillion barrels in reserves. The Lake Chad Basin Commission was set up in 1964 by Cameroon, Chad, Niger and Nigeria, the four countries that contain parts of Lake Chad.
Niger in 2011 that were judged internationally as free and fair. Following the adoption of the newest constitution of 2010 and the presidential elections, Mahamadou Issoufou was elected as the first president of the Seventh Republic. Niger is a landlocked nation in West Africa located along the border between the Sahara and Sub-Saharan regions. It borders Nigeria and Benin to the south, Burkina Faso and Mali to the west, Algeria and Libya to the north and Chad to the east. Niger lies between latitudes 11° and 24°N, and longitudes 0° and 16°E. Niger's area is of which is water. This makes