How Many Tons of CO2 Are Stuck Down Underground?

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Carbon-captured tech is mostly used to capture emissions from fossil fuel burning power stations or industrial plants. So that's stopping more CO2 from going into the air, but it doesn't tackle the billions of tons of carbon already floating around in the atmosphere. Karri paints a picture of a world where instead of tankers and pipelines moving oil around the planet, they'd be moving CO2 to places like Iceland.

Direct air carbon capture - taking carbon dioxide straight out of the air around us - sounds like science fiction. In this episode of Tech Tonic Pilita Clark visits Iceland to meet the engineers and scientists at the forefront of this new tech. Can carbon capture scale up quick enough to have an impact on climate change, or is it just an excuse to allow fossil fuel companies and emitters to keep polluting?

Check out stories and up-to-the-minute news from the Technology team at ft.com/technology

Tech Tonic is presented by Pilita Clark. Edwin Lane is senior producer. Produced by Josh Gabert-Doyon. Executive producer is Manuela Saragosa. Sound design by Breen Turner and Samantha Giovinco, with original music from Metaphor Music. The FT’s head of audio is Cheryl Brumley.

Read a transcript of this episode on FT.com

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