The thing that humans have is resilience. We can jump off the f'd up train track if we put our efforts toward that goal.

Remember the ozone hole? It's been shrinking and almost back to normal, per scientists who watch. Pesticides put birds on the endangered list, but after that pesticide was banned, they have become abundant again. We don't remember the wins, but they are there. Humanity will change their ways, but only when they have exhausted the other ways, first. We can ban more pesticides. We've done it before, we will do it again. We are on the verge of a clean energy future. The old rich fossils can hold on to the old ways for only so long, They are dying out. They will be replaced by a new ethics, who will find new ways to screw up.