Topic
- Pipelines 19
- Sewage 19
- Canals 18
- Hussein, Saddam, 1937-2006 17
- Reclamation of land 17
- Water--Purification 17
- Climate 16
- Foreign relations 16
- Industries 16
- Petroleum 15
- Drinking water 14
- Precipitation (Meteorology) 13
- Commerce 12
- Economic development 12
- Population 11
- Rivers 11
- Aquifers 10
- Atatürk Dam (Turkey) 10
- Mosul (Iraq) 10
- Saline water conversion 10