Without education, there is no survival. Not climate, not resources, but education is the key factor for the survival of humanity. Societies that promote broad education today face those that are less educated, some of which are fundamentalist, and have no answers to the social and technological challenges of our time. Klingholz and Lutz make it clear: The conflict line of the 21st century runs between the educated and the uneducated. "We are in the midst of a struggle of educational cultures," say population development experts Reiner Klingholz and Wolfgang Lutz. And this concerns all of us, as poverty, despair, and terror do not stop at borders. It is time to invest globally in education. In this book, Klingholz and Lutz outline different scenarios for the future of humanity until the end of the 21st century.