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Taking carbon out of the air and putting it into concrete

Volts

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Introduction

Heirloom Carbon Technologies will capture carbon dioxide from the ambient air and then hand it off to a company called Carbon Cure Technologies which will inject the CO2 into concrete made by Central Concrete. Heirloom runs the US's only operating direct air capture facility does not use the familiar capture technique that involves giant fans. Instead it binds carbon to exposed rock and then cooks it out using electric kilns and then binds more carbon to the rock in a circular process.

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