The Human Footprint is a global, thematic, and multi-disciplinary history of the planet, from its earliest origins to its current condition. Avoiding conventional narratives and using the latest research in a diverse range of fields, Penna brings harmony to human history and ecology and provides a fresh, much-needed narrative of world history. This book provides a comprehensive, global look at the history of the earth from the Paleolithic to the present era. It uses a multi-disciplinary approach, drawing on the most recent research in geology, climatology, evolutionary biology, archeology, anthropology, history, demography and the social and physical sciences. Each chapter expands on a single theme, including human evolution, the invention of agriculture and its global impact, population growth, urbanization, manufacturing, consumption, industrialization, and energy use.