This text presents geologic processes in context with their impact on humans, our lives and societies. The author's goal is to both create informed citizens and nurture an understanding of geologic science. Part I introduces philosophy and fundamental concepts, the structure of the Earth and plate tectonics, and the origin and significance of rocks and minerals. Part II addresses the major natural hazards including earthquakes, volcanic activity, rivers and flooding, landslides, and coastal processes. Part III discusses the major natural resources associated with the geological environment and the subject of pollution. Part IV presents the important topic of global change, environmental management, and relationships between the environment. For individuals looking for an environmental perspective on physical geology.