Developing novel techniques to forecast global conditions, the authors tackle important questions such as: What does the future hold? How can we sustain prosperity? Are we likely to have less war and genocide? Are nuclear weapons destined to spread to unstable countries? What environmental scarcities and conflicts are we likely to face? Each chapter is built around cause and effect relationships based on empirical evidence that creates a unified predictive model of global economic and political conditions. The limits and possibilities of scientific prediction are also explored, as are the physical, biological, and social properties of the global system.