Scientists create living concrete from bacteria and sand

Cement  production is one of the world’s leading contributors of CO2 emissions. Now, US researchers have combined sand, a hydrogel, and bacteria into a living material that has similar strength to cement-based mortar.

Cement production makes more CO2 than all the trucks in the world

Low-carbon geopolymer cement can reduce CO2 by up to 90 percent. But it costs three times as much as the usual cement and nobody is buying it.