[dirtyid]

In context climate change, it's more apt to compare effects of substituting concrete for CLT. The PUR / polyurethane adhesive is "no bad" in the sense that there's no toxic formaldehyde for people, but production of the adhesives still has heavy health and emissions risks - according to some Finish Building Science thesis I read a few years ago. As for MDF, since its is upcycled industrial wood residuals, it's going to be more economical as a byproduct of CLT popularity. Would probably be more wasteful to not use it. I'm a big believer in engineered wood, intuitively it seems like the way to go, there's just not much literature on it in terms of emission life cycle assessment in building science literature. Then again I haven't read up in a few years and interest in them have exploded outside of niche architecture and building circles.