Old oil and gas rigs might have a new lease on life that could benefit both industry and the planet, says a study from the University of Edinburgh.

Instead of decommissioning North Sea oil and gas rigs, which costs a boatload of money, they could be refitted — for 10x less — as pumping stations for self-contained carbon dioxide storage sites below the seabed.

The sites could be used to lock away CO2 produced by power stations, as well as emissions generated by natural gas production.

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