Life is insanely robust, though we can make species go extinct, and this is the bad thing. So I always make the point that you can't say, 'Is it too late?' That is the terrible question, because either answer promotes inaction. If it's too late, you don't need to act; if it's not too late, you don't need to act.
If the amount of money going into the war economy were invested in landscape restoration, we would be in a far more positive position. It may get a little dire before we pull together, but I think when the prosperous nations, and in particular the U.S., realize they're wrecking their own kids' lives, there will be a mass change in value.