Topic
- Foreign relations 2
- Lake Tharthar (Iraq) 2
- Technology 2
- Transportation 2
- Water consumption 2
- Agriculture and state 1
- Climate 1
- Cotton 1
- Desertification 1
- Ecology 1
- Filters and filtration 1
- Finance 1
- Floods 1
- Hardware, Computer 1
- History 1
- Hydrogeology 1
- Keban Dam (Turkey) 1
- Lake Assad (Syria) 1
- Land tenure 1
- Precipitation (Meteorology) 1