Amy Agoston

For the last three billion years or so, life on Earth was shaped by natural forces. Evolution tended to happen slowly, with species crafted across millennia. Then, a few hundred thousand years ago, along came a bolshie, big-brained, bipedal primate we now call Homo sapiens, and with that, the Earth's natural history came to an abrupt end. We are now living through the post-natural phase, where humans have become the leading force shaping evolution....