This document summarizes key points from Chapter 3 of the textbook "Social Problems, 13e" by D. Stanley Eitzen, Maxine Baca Zinn, and Kelly Eitzen Smith. The chapter discusses world population growth, global inequality and poverty, the relationship between the US and poor nations, and how wealthy countries can help impoverished ones. It provides learning objectives, statistics on population growth over time, explanations of demographic transition and factors affecting fertility rates, and an overview of issues like hunger, disease, urbanization, transnational corporations, colonialism, and conditions for effective foreign aid.