How #Saudi tech is addressing the lack of #construction #sand
However 95 percent of the sand on #Earth, including the vast sands of the Arabian Peninsula, is unsuitable due to its fine particle size.
This means riverbeds across the world are over-mined, causing pollution and flooding, while also shrinking aquifers and deepening droughts.
#news #science #Arabia #dessert #environment #climate #building #co2 #concrete
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