I am also skeptical but I would not call the claim bullshit. Building from wood could in theory be carbon negative. Unclear though if this process is. Another

I am also skeptical but I would not call the claim bullshit. Building from wood could in theory be carbon negative. Unclear though if this process is. Another thing worth considering is that building small houses uses a lot of land, land which might have had forests. That needs to be considered too.