• "desalination, an emerging technology often promoted by private corporations as a solution to drought and water shortages, creates a myriad of environmental and social problems. Desalination: An Ocean of Problemsfinds that desalination–the process of removing salt from seawater to make it drinkable, carries a high price tag, releases unregulated chemicals into drinking water supplies, uses large amounts of energy, pollutes waterways, and threatens fisheries and marine environments, among other drawbacks." *********And this is another reason governments don't leave problem solving up to the general public - most of them don't have enough information to make wise decisions and are too lazy to research and come up with a viable solution.
  • You asked, "Why Australia refuse to build massive number of desalination plants when it is lack of water and always face drought and forest fire?" Wikipedia says, "Large-scale seawater reverse osmosis plants (SWRO) now contribute to the domestic water supplies of several major Australian cities including Adelaide, Melbourne, Sydney, Perth and the Gold Coast. While desalination helped secure water supplies, it is energy intensive (≈$140/ML) and has a high carbon footprint due to Australia's coal-based energy supply."
    • bostjan64
      In other words, Australia has built a massive number of desalination plants due to it's lack of water and always facing drought, in spite of the fact that it is terrible for the environment and more expensive/harmful than finding new groundwater resources.
    • Linda Joy
      You're quoting Wiki after telling me its crap?
    • bostjan64
      That's a good point Linda Joy; wikipedia can be edited by anyone and therefore is not a good source to cite. Here's a better citation that contains much of the same information, perhaps just in a less direct presentation:

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