Advertisement Aniruddha Sharma, Carbon Clean, explains how carbon capture, utilisation and storage (CCUS) technology in the cement industry could be the key to achieving net zero emissions by 2050. Cement is the main raw material used to create concrete, the most widely used man made material in the world. Tonne for tonne, its use is twice that of steel, wood, plastics and aluminium combined, and for good reason; it is durable, safe and strong. And yet, cement also accounts for around 8% of global CO 2 emissions. To put this into perspective, if cement were a nation, it would be the third-highest CO