A team of researchers at UCLA are developing process which would use captured carbon dioxide to make a new building material to replace concrete.

Carbon dioxide emission from power plants are the world’s largest source of greenhouse gases. The production of cement is another large source of greenhouse gases, constituting about 5% of the total.

The researchers are tacking both of these emission by developing a process which combines lime with captured carbon dioxide to produce a concrete-like building material, which they are calling CO2ncrete.

So far, the new construction material has only been produced at a laboratory scale, using 3-D printers to shape it into cones. The researchers are now working on ways to scale the process up.