And in a drought overly dense forest can die wholesale due to insufficient water in the waterbed to support the forest density. See e.g. CA. This is "natural" i

And in a drought overly dense forest can die wholesale due to insufficient water in the waterbed to support the forest density. See e.g. CA. This is "natural" in the sense that this is how trees have grown since time immemorial. But it's also undesirable if there are humans living nearby.