[LargeWu]

I've wondered if capturing carbon emissions from industrial-scale compost facilities would be a net positive. It would have the added benefit of the carbon initially being captured by natural organic processes (i.e. growing food), so it avoids the problem of the energy requirements from trying to just pull carbon from the ambient atmosphere. I don't know if this is feasible but I haven't seen any research on it.

[nine_k]

What we need to offset the last 3 centuries of coal use is to reverse the process. Plant large amounts of trees, cut them, burn the hydrogen part of them, producing char and reclaiming some energy, then bury the resulting coal back in the abandoned coal mines.

[LargeWu]

Yeah, that too. There's not going to be one single solution, the problem is just too big for that. The idea with compost is that growing plants for food and dealing with the waste and excess (which is substantial) is something we're already doing, so can we tack carbon sequestration on top of that

[mikestorrent]

> burn the hydrogen part of them

Could you elaborate