The population of Earth has exploded over the last 100 years. The planet now supports about 7 billion people, and this overwhelming number has many repercussions. Alternative energy resources and the costs of healthcare have become urgent matters. Questions about how to feed, clothe, and house a growing population demand answers. Poverty and overpopulation are no longer just problems for third-world countries but issues that need to be addressed in our own communities. Readers are presented with the many topics surrounding world population and the questions that experts are asking. Also highlighted are suggested solutions, some as radical as setting up colonies on other planets.