Can be a couple of hundred years with trees and wood used for housing. Long enough to figure things out

Not if the panels were to produce graphite pellets that people could bury or dump in ocean trenches.

We both know people would burn graphite pellets. That’s what we do with wood pellets today.

I see that as a positive, not a negative. Since the pellets can be sold, investors are more likely to invest in the development of the process. And the extra volume of production tends to increase the efficiency, i.e., to reduce the cost (paid by altruists and governments) of producing the pellets that do end up in the ground or in ocean trenches.

It might actually help with financing the things. I guess it is almost carbon neutral. Zero efficient though.