Capacity is limited and prices are high. But customers for a new carbon-removal plant are lining up
SHORTLY AFTER 6pm on September 9th, the Orca carbon capture plant, just outside Reykjavik in Iceland, switched on its fans and began sucking carbon dioxide from the air. The sound was subtle—a bit like a gurgling stream. But the plant’s creators hope it will mark a big shift in humanity’s interaction with the climate.
Currently, the only means of doing that is planting trees, an option that is not entirely without drawbacks. Trees burn in wildfires and can be cut down. When this happens, much of the carbon they store escapes. The Orca plant shows another way. Climeworks, the company that owns it, has developed chemical filters which snag CO2 when air passes through them. When heated they release the CO2 again, generating a stream of gas that is handed to another firm called Carbfix.
One catch is volume. Orca will capture 4,000 tonnes of carbon dioxide year, out of around 35bn produced by burning fossil fuels. Climeworks’s founders are “confident” they can reach millions of tonnes before the decade is out.
France Dernières Nouvelles, France Actualités
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