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Tech that’s supposed to take CO2 out of the atmosphere is falling far short of expectations.

Microsoft, TikTok, and other big names have signed deals with Climeworks, a company developing technologies to filter CO2 out of the air, as a way to try to clean up some of their planet-heating pollution. But Climeworks hasn’t even been able to capture enough CO2 to offset its own carbon footprint yet.

The climate tech company announced layoffs as it faces “a challenging time” that includes uncertainty around the future of its projects in the US.

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