We humans are the God Species, both the creators and destroyers of life. In this groundbreaking new book, Lynas shows us how we must use our technological mastery over nature to save the planet from ourselves. Building on recent scientific discoveries, Lynas explains that there are nine `planetary boundaries' that humanity must not cross if Earth is to continue to support life and our civilisation. Climate change is one, but others - like ocean acidification, nitrogen use and biodiversity loss - are less well-known, though equally crucial. These boundaries all interact, and we can only hope to manage the planet successfully if we understand how they affect one another...