[Pfhreak]

I think you might be holding a spherical cow.

Does your math include the carbon necessary to harvest, transport, cut the lumber? And to haul away the existing structure?

[umvi]

> Does your math include the carbon necessary to harvest, transport, cut the lumber? And to haul away the existing structure?

True. I don't know how many lbs of carbon it takes to cut down, transport, and harvest a tree. But I would hope less than 15,000 kg.

If the trade off isn't worth it, use electric machinery and transportation powered by nuclear plants.