Cement Kilns Could Become Carbon Negative if Run on Clean Energy as Limestone Absorbs CO2

The production of cement ranks as one of the world’s largest industrial sources of CO2, but now a new study shows how in the future it could be used to remove, rather than produce the greenhouse gas. Every year, around 4 billion metric tons of CO2 are produced through an energy-intensive process, and particularly during […] The post Cement Kilns Could Become Carbon Negative if Run on Clean Energy…