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  • Water resources.

    Was reading an alarming article about the declining water storage in Chennai, India but the article also briefly touches upon other places around the world where the lack of water is or will be a problem.
    https://www.abc.net.au/news/2019-06-...rcity/11229084


    Cape Town, a city of more than 4.2 million people in South Africa, faced its worst water crisis in history between 2015 and mid-2018.

    As dam levels fell to record lows, some at less than 10 per cent, authorities prepared for Day Zero — where taps were to be shut off with citizens restricted to 25 litres per day.

    In Northern Africa, the Egyptian capital of Cairo could run out of water because Ethiopia is damming the Nile River, which currently provides the city with 97 per cent of its water supply.

    In the United States, damming of the Colorado River — combined with a 19-year drought — has led some officials to determine that some reservoirs fed by the river will never be full again.

    The Colorado stretches across the southwest of the country, being a source of water for some of the region's biggest cities such as Los Angeles, San Diego and Las Vegas.

    In Asia, 3.4 billion people could be living in "water stressed areas" by 2050, according to a 2016 Asia Development Bank (ADB) report.
    Desalination plants appear to be the short term answer for those places that can afford it.

    According to Christopher Gasson of Global Water Intelligence, “At the moment, around 1 percent of the world’s population is dependent on desalinated water to meet their daily needs, but by 2025, the UN expects 14 percent of the world’s population to be encountering water scarcity. Unless people get radically better at water conservation, the desalination industry has a very strong future indeed.”
    "In modern war... you will die like a dog for no good reason."
    Ernest Hemingway.

    In english "silence" means yelling louder than everyone else.

  • #2
    Desalination uses a hell of a lot of energy
    Human history becomes more and more a race between education and catastrophe (H G Wells)
    Mit der Dummheit kaempfen Goetter selbst vergebens (Friedrich von Schiller)

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    • #3
      If you build cities in deserts you should not be surprised when there are water shortages. If you build cities below sea level, such as New Orleans, you shouldn't be surprised if there is flooding. This ties into the migration problem. Do people have the right to live where ever they want and expect other people to take care of the problems it creates? The sensible answer is people should move to where the water is not move the water to where the people are.

      California is an excellent example of population growth exceeding water infrastructure growth. If the California government had followed it's long established dam construction plan there would be few water shortages. Instead California decided to attract millions of illegal immigrants and spend the infrastructure money on welfare.


      We hunt the hunters

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      • #4
        Originally posted by wolfhnd View Post
        If you build cities in deserts you should not be surprised when there are water shortages. If you build cities below sea level, such as New Orleans, you shouldn't be surprised if there is flooding. This ties into the migration problem. Do people have the right to live where ever they want and expect other people to take care of the problems it creates? The sensible answer is people should move to where the water is not move the water to where the people are.

        California is an excellent example of population growth exceeding water infrastructure growth. If the California government had followed it's long established dam construction plan there would be few water shortages. Instead California decided to attract millions of illegal immigrants and spend the infrastructure money on welfare.

        Many (most) cities with water problems weren't built in deserts originally. Many cities with flooding problems weren't built below sea level either. Some land has sunk, albeit very slowly. SE England has been sinking for aeons whilst Northern Scotland had been rising for example. As a result London's flood risk inexorably increases. Sea level is also rising. Cities built on rivers are finding that water flow has changed - in India because of changes both to glacier melt and to rain and snow fall patterns in the mountains. Building huge dams can create as many problems as they solve as Egypt and now China are beginning to learn.
        Human history becomes more and more a race between education and catastrophe (H G Wells)
        Mit der Dummheit kaempfen Goetter selbst vergebens (Friedrich von Schiller)

        Comment


        • #5
          New Orleans was the first area going up the Mississippi that was high enough to build on. They should have gone further up the river to the Baton Rouge area. The main problem is expansion of the town while the city grew. The only areas they could go was off the river bank and that was gumbo mud that could and did sink. Lake Ponchitrain is a giant sink hole that is much like other places in the coastal swamp. The other states around Louisiana gain in elevation quickly as you go inland. Much of South Louisiana was built by the Mississippi River and so is much like a thick gumbo that is barely dried out. If you add water it reverts to soup again.

          Pruitt
          Pruitt, you are truly an expert! Kelt06

          Have you been struck by the jawbone of an ASS lately?

          by Khepesh "This is the logic of Pruitt"

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          • #6
            Originally posted by MarkV View Post

            Many (most) cities with water problems weren't built in deserts originally. Many cities with flooding problems weren't built below sea level either. Some land has sunk, albeit very slowly. SE England has been sinking for aeons whilst Northern Scotland had been rising for example. As a result London's flood risk inexorably increases. Sea level is also rising. Cities built on rivers are finding that water flow has changed - in India because of changes both to glacier melt and to rain and snow fall patterns in the mountains. Building huge dams can create as many problems as they solve as Egypt and now China are beginning to learn.
            Deserts are defined as areas with less than ten inches of rainfall per year. Look at a nap of the U.S. rainfall distribution and you will see that southern California is desert or near desert as well as much of the west.

            https://en.m.wikipedia.org/wiki/Unit...of_the_USA.png

            Much of southern Africa is desert or near desert.

            https://news.ilri.org/2014/07/23/new...all-in-africa/

            Despite much debate their is evidence that the last major climatic event named the Younger Dryas was a period of rapid cooling that resulted in drier conditions in many areas already subject to drought. The global warming community has pushed back against this idea with what I would call some dubious evidence but you can draw your own conclusions. We can just say the science isn't settled. I would just say that solving the co2 problem will not solve the water shortage problem. Along those lines the focus on snowfall is more about distribution than total annual precipitation.

            The idea that building dams created as many problems as it solves falls under what I would call the naturalist fallacy. The same could be said of almost any technology starting with agriculture. Without agriculture human population and thus human impacts would be keep to a minimum. Humans like all animals impact their environment. Unless you are a religious sort of person labeling anything that humans do as unnatural is a logical fallacy. A nuclear power plant is no different in kind than a beaver dam or termite mound. The ability to manipulate the environment is a matter of degree not kind. That does not mean that those manipulations should not be rational but that they shouldn't be made starting from an irrational perspective of a secular religious perspective of unnatural.
            We hunt the hunters

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            • #7
              Originally posted by Pruitt View Post
              New Orleans was the first area going up the Mississippi that was high enough to build on. They should have gone further up the river to the Baton Rouge area. The main problem is expansion of the town while the city grew. The only areas they could go was off the river bank and that was gumbo mud that could and did sink. Lake Ponchitrain is a giant sink hole that is much like other places in the coastal swamp. The other states around Louisiana gain in elevation quickly as you go inland. Much of South Louisiana was built by the Mississippi River and so is much like a thick gumbo that is barely dried out. If you add water it reverts to soup again.

              Pruitt
              At a time when trade was conducted by water or not at all choices were more limited than they are today
              We hunt the hunters

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              • #8
                So if the oil price is really as bad as they say it is, we could make up the shortfall by selling water ? It's not as if Scotland has any problem with the stuff.
                Indyref2 - still, "Yes."

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                • #9
                  This year monsoon is late. Last year it was deficient.


                  Indian's from all faiths are praying for good rains to almighty .

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                  • #10
                    Originally posted by vikram72 View Post
                    This year monsoon is late. Last year it was deficient.


                    Indian's from all faiths are praying for good rains to almighty .
                    India is a good example of how it isn't just how much rain you receive but how and when it falls.

                    The U.S. endured a terrible drought in the 30s known as the dust bowl.

                    https://en.m.wikipedia.org/wiki/Dust_Bowl

                    Both my parents lived through it and the hardships it induced. Our family farm is in one of the worst effected areas. 40 years later my dad still talked about how it altered farming practices. Their are still people that talk about returning the region to what they call "buffalo commons".

                    What I have in common with people in India is an understanding that our fate is in the "hands of God" to a greater extent than the Western Urban population could understand.
                    Last edited by wolfhnd; 23 Jun 19, 07:15.
                    We hunt the hunters

                    Comment


                    • #11
                      Originally posted by wolfhnd View Post

                      India is a good example of how it isn't just how much rain you receive but how and when it falls.

                      The U.S. endured a terrible drought in the 30s known as the dust bowl.

                      https://en.m.wikipedia.org/wiki/Dust_Bowl

                      Both my parents lived through it and the hardships it induced. Our family farm is in one of the worst effected areas. 40 years later my dad still talked about how it altered farming practices. Their are still people that talk about returning the region to what they call "buffalo commons".

                      What I have in common with people in India is an understanding that our date is in the "hands of God" to a greater extent than the Western Urban population could understand.
                      Yes " hands of God " or act of god.

                      Millions of Indian and other farmers of Indian sub continent are living on the mercy of god. If he will send good mansoon or not this year.

                      humans are also responsible for their misery. Deforestation and lack of water conservation .

                      in India people are learning very fast. Many areas has done wonderful water harvesting and has improved their ground water table.

                      but in many areas much work is needed

                      The dust bowl scenario must be horrible.

                      We in India suffered a lot due to deforestation.

                      we borrowed a technique from US called clear felling. It simply destroyed large tracts of Virgin Forests post 1947.

                      but fortunately it was stopped after some time.

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                      • #12
                        Originally posted by the ace View Post
                        So if the oil price is really as bad as they say it is, we could make up the shortfall by selling water ? It's not as if Scotland has any problem with the stuff.
                        Blended with various barley malts and then distilled, Scotland already exports a lot of water.

                        The trout who swims against the current gets the most oxygen..

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                        • #13
                          Originally posted by the ace View Post
                          So if the oil price is really as bad as they say it is, we could make up the shortfall by selling water ? It's not as if Scotland has any problem with the stuff.
                          Way back in the day when I worked in Glasgow I can think of some who had problems drinking it or allowing it to come in contact with the skin -especially when combined with soap.
                          Human history becomes more and more a race between education and catastrophe (H G Wells)
                          Mit der Dummheit kaempfen Goetter selbst vergebens (Friedrich von Schiller)

                          Comment


                          • #14
                            Another issue of water, this time in Indonesia.

                            https://mobile.abc.net.au/news/2019-...nking/11190928
                            "In modern war... you will die like a dog for no good reason."
                            Ernest Hemingway.

                            In english "silence" means yelling louder than everyone else.

                            Comment


                            • #15
                              Originally posted by MarkV View Post

                              Way back in the day[HTML] when I worked in Glasgow [/HTML]I can think of some who had problems drinking it or allowing it to come in contact with the skin -especially when combined with soap.
                              My father informed that the Gorbals dancehall girls used to compensate with clouds of cheap perfume. ( Including Wartime Aqua Velva mixed with Grapefruit juice....)
                              The trout who swims against the current gets the most oxygen..

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