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We Are Running Out of Sand
HughPickens.com writes John R. Gillis writes in the NYT that to those of us who visit beaches only in summer, beaches seem as permanent a part of our natural heritage as the Rocky Mountains but shore dwellers know that beaches are the most transitory of landscapes, and sand beaches the most vulnerable of all. Today, 75 to 90 percent of the world's natural sand beaches are disappearing, due partly to rising sea levels and increased storm action, but also to massive erosion caused by the human development of shores. The extent of this global crisis is obscured because so-called beach nourishment projects attempt to hold sand in place (PDF) and repair the damage by the time summer people return, creating the illusion of an eternal shore. But the market for mined sand in the U.S. has become a billion-dollar annual business, growing at 10 percent a year since 2008. Interior mining operations use huge machines working in open pits to dig down under the earth's surface to get sand left behind by ancient glaciers.
One might think that desert sand would be a ready substitute, but its grains are finer and smoother; they don't adhere to rougher sand grains, and tend to blow away. As a result, the desert state of Dubai brings sand for its beaches all the way from Australia. Huge sand mining operations are emerging worldwide, many of them illegal, happening out of sight and out of mind, as far as the developed world is concerned. "We need to stop taking sand for granted and think of it as an endangered natural resource," concludes Gillis. "Beach replenishment — the mining and trucking and dredging of sand to meet tourist expectations — must be evaluated on a case-by-case basis, with environmental considerations taking top priority. Only this will ensure that the story of the earth will still have subsequent chapters told in grains of sand."
One might think that desert sand would be a ready substitute, but its grains are finer and smoother; they don't adhere to rougher sand grains, and tend to blow away. As a result, the desert state of Dubai brings sand for its beaches all the way from Australia. Huge sand mining operations are emerging worldwide, many of them illegal, happening out of sight and out of mind, as far as the developed world is concerned. "We need to stop taking sand for granted and think of it as an endangered natural resource," concludes Gillis. "Beach replenishment — the mining and trucking and dredging of sand to meet tourist expectations — must be evaluated on a case-by-case basis, with environmental considerations taking top priority. Only this will ensure that the story of the earth will still have subsequent chapters told in grains of sand."
Selling sand to an Arab!! Hah, now I've heard it all.
What's next? Selling snow to an Eskimo?
Because the local sand was the wrong type for sandbags...
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"man made climate change ahhhhh!!!!11"
Oh Noes! We've reached peak sand! Our grandchildren will live in a sandless world marked by misery and sharp rocks.
Sand has a lot of uses but it's non-renewable. There's no way (yet) to manufacture it. If you mine the beaches you ruin the environment and end up with eyesores. The same thing happens if you go to your local desert and mine there. It is possible to strip mine a desert, take all the sand and sandstone, and then put a layer of sand back on top. That leaves the landscape looking mostly the same, albeit a bit lower in elevation than it was before, but it takes a _lot_ of work. I've heard of people doing massive underwater operations to strip mine the seabed of sand so that none of the easily visible above-water environments are damaged.
...wait, we are talking about Minecraft, right?
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If we run out of sand, where will you put your head?
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