For the world to hit net zero, carbon removal is going to be essential—there’s simply no way to reverse humanity’s impact on the climate without extracting carbon from the air. The world currently has the capacity to extract hundreds of thousands of tons of carbon from the air each year. That needs to increase 14,000 times, to 10 billion tons annually, by 2050 if targets are to be met.
That kind of scaling feels impossible. But Michelle You, cofounder of carbon-accounting firm Supercritical, disagrees. “Solar power started out at tiny megawatt capacity—now it’s whatever percentage of the grid,” she says. In the next five
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