Why does some coastal cities/counties have a problem of lacking drinking water?

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Like California and South Africa, isn’t the principle of water distillation relatively easy? evaporating from one end and cooling it from the other so that it becomes liquid again, leaving all the salt and pollutants behind.

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Anonymous 0 Comments

Desalination (through distillation, filtration, whatever) takes a LOT of energy. Energy is not cheap. Technically feasible is not the same as economically or politically feasible.

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