Let's run the numbers. I believe Climeworks' Orca is the largest DAC plant right now, and they claim it'll capture 4000 tons/year. We currently emit something l

Let's run the numbers. I believe Climeworks' Orca is the largest DAC plant right now, and they claim it'll capture 4000 tons/year. We currently emit something like 40 gigatons/yr. (4*10^10)/(4*10^3) = 10^7 DAC plants. So let's say that DAC isn't a silver bullet :-) There are a whole portfolio of other carbon capture and sequestration technologies that'll be needed to get us carbon-negative enough to avoid going over +2 degrees C. Of course, by the time we have spare fusion power, that'll also have replaced much of those 40 gigatons, and Orca is certainly not the upper limit in terms of scale.