kokonut
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Two percent of all the water on this planet is freshwater. Why risk making that less? You can't grow or mine freshwater, it's in increasingly dwindling supply. And if you have an aquifier that's full of fresh pure water, it's wiser to bypass it than run a leaking pipeline through it.
There's been thousands of leaks from pipelines since 1979.
That "two percent" is quite a lot in terms of what's available out there for human consumption and land use when you put down the numbers in gallons. Conservation of water is a good exercise to abide by. Mining aquifer in some places have caused the ground to drop tens of feet (subsidence) and so on and that was due to excessive use of groundwater withdrawal and water waste when recharge rate couldn't keep up. Reverse osmosis technology has enabled us to tap ocean water and saline/brackish groundwater as a source for fresh, clean water. Israel is big on this technology. So is in many parts of the United States.
The "thousands of leaks," yes. It happens. That's why old underground storage tanks for oil and gasoline had to be phased out for better storage tank design because it was impacting water tables in many places. We continue to improve the designs and conservation efforts. For example, drip irrigation is much better than spraying water in the air where some 70% of the water evaporates. Or a covered water canal is better than an open one because it would reduce evaporation by volume by 30 percent or so.
Yes, water is "dwindling" but what's increasing is our water conservation efforts, too. And better designs.
The whole aquifer doomsay scenario with the pipelines is a bit of a hyperbole on steroids. Risks? Sure. Always. Which is why there are ways we can mitigate these risks. Leaks will happen and we'll continue to address them. Water is our most precious resource but technology is making it easier to get and have clean water.