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When carbon dioxide (CO2) is released from a factory or power plant, the gas can be captured and permanently stored underground, preventing it from driving climate change.

This is the idea underpinning carbon capture and storage (CCS), a technology that is at the heart of many nations’ net-zero plans.

Influential organisations, including the Intergovernmental Panel on Climate Change (IPCC), describe CCS as “critical” for cutting emissions from key sectors — and for helping to avoid dangerous global warming.

In particular, capturing CO2 is seen as one of the only viable options for decarbonising some of the world’s highest-emitting industries, such as cement production.