Wildlands continue to decline globally at a rapid rate. As hunter-gatherers, the human population probably approached a global K value, estimated at 8.6 million, approximately 10,000 years ago, and continues to grow, from 2.5 billion when I was born, to rapidly approaching 8 billion as I write (65). Deforestation rates are in the range of 10 million hectares annually. Atmospheric CO2 is rapidly increasing and growing-season days are projected to move as much as 10° poleward higher in latitude over the next three decades (407). In the environmental media, the idea of re-wilding (reintroducing absent or declining species into relatively intact habitat) has been gaining strength as the likelihood of mass extinction materializes.