Sure, he says, climate change could decimate humanity, but that’s no excuse to give in to fatalism. “There would be, still, pockets of populations that will scatter around the world,” he says. “What’s at stake is the culture as we know it.” Humans will continue to exist — and we have a responsibility to build a culture of respect and mutual assistance. It seems so dreadfully unlikely, but we are obligated to hope.
Cuarón is very specific about what he means by that word. For him, it is not a passive thing. It is not a messianic thing, either — he speaks derisively of the idea that you could vote for Barack Obama, then sit back passively and feel disappointed. “The hope is something that you create,” he says. “You live by hoping and then you create that change. Hope is trying to change your present for a better world. It’s pretty much up to you.”