Earth the Sapphire Planet Author:Url Lanham Remarkably concise, engagingly written biography of the gemlike blue planet brims with facts and insights as it examines Earth’s position in the universe, reviews the work of scientists who have made major contributions to our knowledge of the planet, discusses the creation of continents, considers the origin and diversity of plant and ani... more »mal life, and much more. A thought-provoking natural history of Earth, this volume belongs on the bookshelves of ecologists, students, teachers and general readers alike.« less