With her celebrated blend of scientific insight, clarity, and curiosity, Diane Ackerman explores our human capacity both for destruction and for invention as we shape the future of the planet Earth. Ackerman takes us to the mind-expanding frontiers of science, exploring the fact that the "natural" and the "human" now inescapably depend on one another, drawing from "fields as diverse as evolutionary robotics...nanotechnology, 3-D printing and biomimicry" (New York Times Book Review), with probing intelligence, a clear eye, and an ever-hopeful heart.