Humans depend on the Earth's resources: we need its energy, its minerals, its forests and its oceans. As the population grows and human activity changes, how can we use and maintain these resources effectively? This text explores the nature of the world's resources, studying the way humans manage them. It covers a full range of resource issues from energy generation and mineral extraction, to water disputes and sustainable forests, showing how a variety of management strategies work and what problems can arise. With a section on the effects of population growth, the book explores specifically the opportunities we have to develop alternative methods to sustain our resources.