At the current rate of extinction, more than one million species will be forever gone from Earth by the year 2050. Extinction is the greatest danger to biodiversity and to food webs. This book lays out the startling facts regarding the scope of this looming problem, but also provides necessary hope and encouragement--detailing the ways in which scientists, engineers, and climatologists are gathering the knowledge and testing the technologies necessary to slow and eventually reverse climate change, preserve vulnerable habitats, fight invasive species, create "doomsday" seed banks, and even clone endangered species. Readers will be empowered by learning practical, everyday strategies through conservation, volunteerism, political action, and a reduction in the carbon footprint of themselves, their family, and their wider community.