Boise Idaho is not in the Sierra Nevada. The trees there are doing just fine. I have been there even as recently as this past summer. It was a dry year and there were burnt sections but nature. This year they will have plenty of water and then some.
Another thing to note is that it is not climate change that the trees are incompatible with, it is modern forest conservation methods. When a forest fire starts, they run out and extinguish it as soon as possible. The trees grow more dense and the bugs eat them. When someone suggests cutting down some of the trees to reduce the density, environmentalists get upset. Besides that they already got rid of most of the sawmills. So if they did thin the forest there’s no place to take the trees.
Here's Joe, true believer...