Good idea. Now tell me how you plan to offset the carbon emissions from land use change... You weren't planning on building dense housing with wood, were you?

There's a group doing that.

They can make some pretty impressive engineered beams these days. The fire intensity required to destroy them, they claim, also structurally damages concrete, so it's not the issue most of us take it to be.

The presumotion is that the land would have changed anyway, just in a more carbon intesnive way. Of course "burying it" would seem to require some carbon outputs, and a temporary land use change. What do you think that would be sustainable?