It’s getting cheaper to filter carbon dioxide out of the air

The next generation of industrial plants to filter CO2 out of the air is on the way, and it’s getting closer to overcoming some of the biggest challenges of using this technology to fight climate change. Climeworks, one of the first startups to develop this tech, unveiled its Generation 3 plant today. It’s supposed to use half as much energy as older designs and slash costs in half, too.

If Climeworks makes good on that promise, it could go a long way toward making this technology, called direct air capture (DAC), a viable way to reduce the amount of carbon pollution building up in the atmosphere. Right now, the technology is far too new and expensive to...

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