Knock on wood!
The naturally renewable raw material wood is perfect in every way: wood is the product of sustainable forestry and this conserves natural resources by taking care of the forests and keeping them intact - and not chop them down.
For clarification let us draw the comparison with materials of solid construction: A gravel pit does not regrow, but a tree does. That means, that wood as a building material has got an approximately neutral climate footprint and thus hardly emit Co². To build with wood from sustainable forestry is therefore in the long term a benefit for all.