Is it true that the world is running out of sand to produce concrete, and if so, why is that?

Question

Is it true that the world is running out of sand to produce concrete, and if so, why is that?

In: 92

Answer 1

Ecological reasons also play a part, places that once were considered ripe for sand dredging and excavation are now protected for ecological reasons.

Much of the sand used in concrete comes from “ancient” river bed deposits which is good sharp sand, free of salt water but many areas once mined for sand are now in environmentally protected areas because they are near to rivers.