Getting Water From The Sea Economically
The great irony of course is that many countries that have little water are surrounded by sea which contains water and lots of it.
Despite all the technological advances that there have been, it is notable that the extraction of fresh water from seawater in an economically viable way remains one of the few things that has not yet been achieved. If it could be done then the results could be massive.
Now a method that uses solar power to heat the water and trap it in a sort of greenhouse could potentially allow pure water vapour that condenses in it to be extracted at a commercially viable cost.
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