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Topic
- Saline water conversion 15
- Technology 10
- Irrigation 9
- Economics 6
- Agriculture 5
- Politics and government 5
- Aquifers 4
- Dams 4
- Sewage 4
- Water quality 4
- Water-supply 4
- Groundwater 3
- Water reuse 3
- Demography 2
- Droughts 2
- Hydrology 2
- International regimes 2
- Investments, Foreign 2
- Reservoirs 2
- Resource allocation 2
