Topic
- Health 2
- International law 2
- Natural resources--Management 2
- Negotiation 2
- Peace 2
- Precipitation (Meteorology) 2
- Rivers 2
- Soils 2
- Water consumption 2
- Water--Law and legislation 2
- Aswan High Dam (Egypt) 1
- Bedouins 1
- Bureaucracy 1
- Canals 1
- Climate 1
- Conservation 1
- Contamination of environment 1
- Diseases 1
- Drainage 1
- Droughts 1