As climate change shrinks the space where our civilization can exist, new technologies like artificial intelligence and robotics threaten to bleach away the variety of human experience. McKibben tells the story of these converging trends and of the ideological fervor that keeps us from bringing them under control. And then, drawing on McKibben's experience, the first truly global citizens movement to combat climate change, it offers some possible ways out of the trap. We're at a bleak moment in human history and we'll either confront that bleakness or watch the civilization our forebears built slip away.