A new analysis of global sand extraction indicates the industry is removing roughly 50 billion metric tons a year, a pace that far outstrips natural replenishment.Experts say the loss of sand from landscapes, river deltas, and coastal zones threatens ecosystems, livelihoods and many processes on which life depends.Although the sand mining industry is operating at unsustainable levels, experts say measures exist to lessen its impact.Solutions include coordinated governance, stronger monitoring and long-term, cross-border planning.

Sand is the most widely extracted solid material on Earth. The global sand mining industry removes roughly 50 billion metric tons of it a year, a pace that far outstrips the planet’s natural replenishment rates, according to a new report from the U.N. Environment Programme (UNEP).

Excessive sand extraction from landscapes, rivers and coastal zones threatens ecosystems, livelihoods and many processes on which life depends, the report says. Yet the current pace of removal — enough to build more than 19,000 Great Pyramids of Giza — is only set to grow, with demand for buildings alone expected to rise 45% by 2060.

Without coordinated governance, stronger monitoring and long-term planning to mitigate the risks of surging global demand, the industry will continue operating at an unsustainable level, the authors say.