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  • Iceland is geologically active, with hot rocks and steam just below the surface in many places.

  • A web of pipelines and silver geodesic domes in the southwestern part of the island

  • piggyback on these geothermal features

  • to create power and also to turn atmospheric carbon dioxide into rock.

  • Waste heat from a geothermal power plant powers filters that pull carbon dioxide out of the air.

  • Pipes carry CO2 and water to a geodesic dome where the mixture is

  • injected more than 700 meters underground.

  • In as little as a few months,

  • the basalt bedrock reacts with the injected gas and forms veins of

  • carbonate minerals in the rock.

  • The project puts away just 50 tons of carbon

  • each year, so it's not a cure-all for reaching negative emissions yet,

  • but it proves that air capture and underground storage of carbon dioxide can work.

  • To learn more about this technology and others,

  • read "Scrubbing Carbon from the Sky" by Richard Conniff

  • at sciam.com/lastresort.

  • For Scientific American, I'm Liz Tormes.

Iceland is geologically active, with hot rocks and steam just below the surface in many places.

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B2 中高級 美國腔

从天空擦洗碳(Scrubbing Carbon from the Sky)

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    joey joey 發佈於 2021 年 05 月 15 日
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