>let forests retake "all the land," I agree, a hands-off approach is insufficient. We would need to actively manage those forests (which is just as unnatural a

>let forests retake "all the land," I agree, a hands-off approach is insufficient. We would need to actively manage those forests (which is just as unnatural an activity btw), using intelligent design to improve upon the carbon density possible solely from blind natural processes. Big industrial thermodynamic sinks don't scale (and imo never will), simply because they can't economically compete with conventional energy consuming factories. An approach is needed that sequesters carbon while also producing sufficiently valuable goods to society (ie probably not rocks). Food is one possibility, and can avoid carbon futility since in perennial systems the annual food yield is a small percentage of the total carbon stored in the biome.