World’s biggest machine capturing carbon from air turned on in Iceland

Operators say the Orca plant can suck 4,000 tonnes of CO2 out of the air every year and inject it deep into the ground to be mineralised

The world's largest plant designed to suck carbon dioxide out of the air and turn it into rock has started running, the companies behind the project said on Wednesday.

The plant, named Orca after the Icelandic word orka" meaning energy", consists of four units, each made up of two metal boxes that look like shipping containers.