This latest book in the bestselling '50 Ideas' series is a wonderfully accessible overview of the only place we know of in the universe that is capable of sustaining life. Expert popular science writer Martin Redfern covers all the natural processes of the Earth: climate, ocean currents, air currents, the elements, plate tectonics, fossils, the evolution of life, volcanology, sea levels and the ultimate fate of the Earth. The 50 Ideas featured include: Geological formation; Rock layers; Formation of the atmosphere; Plate tectonics; Continental rifts; Volcanology; Simple life; Multi-cellular life; Snowball Earth; Gondwana and Pangea; Sexual selection; Complex life; The Cambrian revolution; The dinosaurs; Avalonia; The sauropod puzzle; End of the Mesozoic; The Cenozoic recovery; The Great Warming; The 'Great Flood'; The Holocene; Biodiversity and The fate of the Earth.