[pineaux]

I don't agree with this claim. It is only intuitive on the surface. But growth in trees does not slow down as they get older. It actually accelerates. This article corroborates that: https://www.nature.com/articles/nature12914

Sickness and bad conditions usually slow growth down.

In tree farms almost all the trees are in bad condition. The low biodiversity creates a low quality environment. They catch fire very easily. It's low quality wood that ends up in a landfill (and then in the air via rotting) within a few decades.

Eventually a tree will get sick and die. The most ideal situation would be to harvest the tree when it's dead. I would think there could be a businessmodel that maps dead trees and extracts them from forrests for high quality old growth wood.

This is not about "stubborn environmentalism". Although I do agree with you that some environmentalist ideas are a bit short sighted (like dismissing all nuclear options without weighing the properly), it is generally based in science and research. The anti-environmentalist side are usually mostly based in money and corporate interests...