Composure, because even though we have been destroying the planet selfishly thinking only about us and maybe it will never be the same since our intervention, I like to think that maybe we will stop ravaging the earth itself and the enviroment, and that mother nature will take it's course. But there's also that deep feeling of sorrow which overcomes when you realize how everything humanity conquered, crumbles, and the fact of watching how our every step taken vanishes leaving no trail, even though it'd be quite pleasant to behold ditches colapse into oblivion and towers falling to pieces.