Research finds demand has more than doubled since 2000 and 80% of current demand comes from Asia A booming demand for concrete has resulted in sand and gravel being extracted from riverbeds faster than nature can replenish it. A study published in Reviews of Geophysics shows that the demand for ...

Source: [Guardian International](https://www.theguardian.com/science/2026/aug/26/terrawatch-sand-overextraction-riverbanks-concrete-demand)

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