The actual bottleneck is construction-grade sand (sharp, angular grains from rivers and seabeds). We consume 50 billion tons annually—faster than nature replenishes it. #environment #ecology #nature #science
D C Fitzgerald on Nostr: The Earth has endless desert sand, but it’s unsuitable for building—wind erosion ...
The Earth has endless desert sand, but it’s unsuitable for building—wind erosion makes desert grains too smooth & rounded to bind in concrete.
The actual bottleneck is construction-grade sand (sharp, angular grains from rivers and seabeds). We consume 50 billion tons annually—faster than nature replenishes it. #environment #ecology #nature #science
The actual bottleneck is construction-grade sand (sharp, angular grains from rivers and seabeds). We consume 50 billion tons annually—faster than nature replenishes it. #environment #ecology #nature #science