100,000 pounds for 365 tonnes of CO2

This carbon-scrubbing machine is intended more as a proof of concept, not something you’d actually buy and set whirring away in your backyard (or at the back of your factory parking lot). They haven’t built one yet and costs decline with economies of scale.

Led by Klaus Lackner, a physicist at Columbia University in New York, [a team of scientists and engineers] plan to build and demonstrate a prototype within two years that could economically capture a tonne of CO2 a day from the air, about the same per passenger as a flight from London to New York.The prototype so-called scrubber will be small enough to fit inside a shipping container. Lackner estimates it will initially cost around £100,000 to build…

This still gives some indication of (1) how much easier it is to prevent a problem than to solve it afterward, and (2) how cool and important it is that plants do this kind of thing for us naturally.

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