After pointing out that there are threats to our extinction of which most people are aware, this book looks at a very big threat that is being totally ignored. It has a chapter talking about why it is being ignored. However before that, in recognition of the fact that most people know nothing about overpopulation, there is a chapter explaining what overpopulation is and why we are ignoring it. The book then addresses our fixation on our escapes and childish diversions. It becomes obvious that we have become a people of escape that are diverting our thoughts and attention into trivia. The book follows this by discussing all of the things that will happen if we keep on ignoring overpopulation. This provides a gruesome picture of how our species will eventually die-out. This involves the ecosystems collapse leaving us with nothing such as food, water, air we can breathe, marine life, trees for oxygen or plants and animals. All of this will cause our species to turn on itself in fear, panic and chaotic violence that will soon lead to extinction. However the next chapter is positive, because it maps out what will happen if we don't ignore it and do address it. That is because this would mean that our great grandchildren would live and live a life that would be much more pleasant. Of course, this would demand some things that would be very hard to sell. For instance every couple in the world would need to have no more than one child, and they would also be encouraged to have no child at all. Only then would we reduce our population on the Earth to a point where the Earth and its ecosystems could sustain us. The book also addresses all of the things that would vehemently fight having one child to make it very hard to achieve. However it also offers us some hope that it will be done and our future will be secure.