The term "global warming" appears nowhere in tfa. That of course does not mean it isn't the case but it does mean that you are mistaken.

You are correct, I misattributed the top comment as part of the article, was an honest mistake.

"Old growth forests tend to exist in a carbon steady state; younger, growing forests tend to be net carbon uptakers. This situation is due to natural disturbance regimes in forests, like fire and pine beetle, having historically signifiant impacts in large part because of climate change."