- Demographic Studies (87)
- International Migrations (20)
- Urbanization (150)
- Agriculture (35)
- Climate (102)
- Desertification (16)
- Earth Science (72)
- Energy (45)
- Pollution (74)
- Water (86)
- Economy (122)
- Geopolitics (163)
- Social (33)
- Transport (79)
- AIDS (3)
- Conflicts (84)
- Conflicts (47)
- Forced Migrations (32)
- Humanitarian Aid (22)
- Natural Disasters (100)
- European Union (24)
- Francophonie (15)
- Other Institutions (70)
- United Nations (UN) (19)