Assuming abundant power and effective carbon recapture / recycling, how much carbon do you need per person? If it was on the order of 50 lbs of carbon per person, and that could be infinitely recycled, that doesn't seem wildly onerous. It looks like the average person exhales about 2 pounds of carbon per day, so that's a very rough baseline in terms of carbon needs.
Is there a technology available now or soon that can scrub carbon out of the ambient air and capture that in an easy to reuse medium?
Is there a technology available now or soon that can scrub carbon out of the ambient air and capture that in an easy to reuse medium?