Chris Bryant, Columnist

Finally! Bill Gates and Musk Agree on Something.

Though not a silver bullet, direct air capture is an environmental insurance policy we can’t ignore. 

Part of the direct air capture system at the Carbon Engineering Ltd. pilot facility in Canada.

Photographer: James MacDonald/Bloomberg
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When I finally find the courage to tell my young daughter about the climate crisis I’m half-expecting to hear this innocent rejoinder: “If we’ve spewed all that carbon pollution into the air, can’t we just suck it back out again?”

It’s not a silly question. “Direct air capture” (DAC) — an industrial process that removes carbon dioxide from ambient air so it can be locked away underground (or recycled into products like synthetic fuels) — sounds like science fiction. However, the technology to vacuum clean the skies already exists; it just hasn’t been fully industrialized yet. It’s a climate insurance policy we shouldn’t ignore.