The forests will die without intervention. Unless you want California to become 100% desert lands.
Sequoias on the Western Sierra slopes are the last in the world. And from the looks of it they don't have much time. Would you like us to clear the 3000 year old trees too?
Temps are rising. We are engineers who talk of terraforming mars.
Why can we not talk of doing the same thing in our own back yard?