Nile Delta
作者：Amina Abdel-Halim
1. Land Loss
1.1. agricultural production
1.1.1. exports
1.1.1.1. imports
1.1.1.1.1. prices
2. Climate Change
2.1. favorable climate for agriculture
3. Population
3.1. Housing
3.1.1. Transportation
3.1.1.1. Ejection of CO2 into atmosphere
3.2. Littering
3.2.1. Pollution
3.3. resources per capital
4. Water quality
4.1. less clean, drinkable water
4.1.1. in water prices
4.1.2. quality of crops