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    Feb 27 2017 · All these new cities require mind-boggling amounts of sand. Just about every apartment block skyscraper office tower and shopping mall that gets built anywhere from Beijing to Lagos is made

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    Sep 25 2017 · A project in a northern China desert saw positive results in just six months. Flowers and vegetables were growing in nearly 500 acres of sand with the new technology which essentially makes the land fertile in an extremely hot climate. Later this year the goal is to restore nearly 500 more acres and over 32 000 acres within the next two years.

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  • Why the world is running out of sandBusiness Insider

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    A proprietary mix of molten pig iron steel and other ingredients are poured into a mold made of sand. Since sand melts at a higher temperature than iron the mold holds its shape. Once the cast iron pan or pot has cooled the sand mold is broken leaving behind a brand new piece of cast iron cookware. Sand molding has been around since 680 B.C.

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  • Why the world is running out of sandBBC Future

    Nov 08 2019 · China alone has likely used more sand this decade than the United States did in the entire 20th Century. There is so much demand for certain types of construction sand

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