Topic
- Sewage 15
- Water-supply 15
- Dams 13
- Wells 13
- Climate 11
- Water consumption 10
- Water use 10
- Yarmuk River 10
- Armed Forces 9
- Canals 9
- Floods 9
- Tiberias, Lake (Israel) 9
- Refugees 8
- Water--Storage 8
- Watersheds 8
- Contamination of environment 7
- Human settlements 6
- International law 6
- Population 6
- Tiberias (Israel) 6
