Climate:
tropical in south, desert in north
Terrain:
broad, arid plains in center, desert in north, mountains in
northwest, lowlands in south
Elevation extremes:
lowest point: Djourab Depression 160 m
highest point: Emi Koussi 3,415 m
Natural resources:
petroleum (unexploited but exploration under way), uranium, natron,
kaolin, fish (Lake Chad)
Land use: arable land: 2.78% permanent crops: 0.02% other: 97.2% (1998 est.)
Irrigated land:
200 sq km (1998 est.)
Natural hazards:
hot, dry, dusty harmattan winds occur in north; periodic droughts;
locust plagues
Environment - current issues:
inadequate supplies of potable water; improper waste disposal in
rural areas contributes to soil and water pollution; desertification
Environment - international agreements:
party to: Biodiversity, Climate Change, Desertification, Endangered
Species, Nuclear Test Ban, Ozone Layer Protection, Wetlands
signed, but not ratified: Law of the Sea, Marine Dumping
Geography - note:
landlocked; Lake Chad is the most significant water body in the
Sahel