Apparently using desert sand, which is abundant, isn’t feasible and beach / river sand has been the only solution. A team has recently created a concrete alter

Apparently using desert sand, which is abundant, isn’t feasible and beach / river sand has been the only solution. A team has recently created a concrete alternative from desert sand, however, that has half the carbon footprint and is made from abundant materials. https://www.dezeen.com/2018/03/24/desert-sand-could-offer-low-carbon-concrete-alternative/ https://www.dezeen.com/2018/03/24/desert-sand-could-offer-lo...