Also steel production procduces a lot of CO2. So much in fact that some steelworks are switching to hydrogen instead of coalbased for its steel.
TL;DR: carbon sink, pulp wood rather than old growth, trees get replanted.
I think that is all fine and dandy, but I personally would prefer an article simply describing the building. I don't think it's necessary to go the "this is green" or "better than concrete" route. For me good is good, that's it. Don't need to play towards a debate.
In other places, the greenest building is the one that is already standing. Even if it may be made from concrete.
Every place has it's own most adequate materials. In Norway it may be wood, in Japan it may be bamboo, but in many places it is concrete or some upgrade thereof.
I didn't like that the article is basically an advert.