We seem to be in a philosophical crisis. Pope Francis says it clearly: our common home is in deadly danger. Analyzing the philosophical crisis, the book comes to the conclusion that the world may need a "new enlightenment"; one that is not based solely on doctrine, but instead addresses a balance between humans and nature, as well as a balance between markets and the state, and the short versus long term.

To do this we need to leave behind working in "silos" in favor of a more systemic approach that will require us to rethink the organization of science and education. However, we have to act now; the world cannot wait until 7.6 billion people have struggled to reach a new enlightenment. This book is full of optimistic case studies and policy proposals that will lead us back to a trajectory of sustainability.

But it is also necessary to address the taboo topic of population increase. Countries with a stable population fare immensely better than those with continued increase. Finally, we are presenting an optimistic book from the Club of Rome.