Dr. Smil is the world's authority on nitrogenous fertilizer. The industrial synthesis of ammonia from nitrogen and hydrogen has been of greater fundamental importance to the modern world than the invention of the airplane, nuclear energy, space flight, or television. The expansion of the world's population from 1.6 billion people in 1900 to today's six billion would not have been possible without the synthesis of ammonia. In Enriching the Earth, Vaclav Smil begins with a discussion of nitrogen's unique status in the biosphere, its role in crop production, and traditional means of supplying the nutrient. He then looks at various attempts to expand natural nitrogen flows through mineral and synthetic fertilizers. The core of the book is a detailed narrative of the discovery of ammonia synthesis by Fritz Haber—a discovery scientists had sought for over one hundred years—and its commercialization by Carl Bosch and the chemical company BASF. Smil also examines the emergence of the large-scale nitrogen fertilizer industry and analyzes the extent of global dependence on the Haber-Bosch process and its biospheric consequences. Finally, it looks at the role of nitrogen in civilization and, in a sad coda, describes the lives of Fritz Haber and Carl Bosch after the discovery of ammonia synthesis.

Based on his extensive investigation of the global environmental crisis, in which he explored five continents, "Earth Odyssey" recounts Hertsgaard's search for the answer to the essential question of our time: Is the future of the human species at risk?

“An empowering and expertly curated look at the horticultural world.” —Gardens Illustrated In this beautiful and empowering book, Jennifer Jewell introduces 75 inspiring women. Working in wide-reaching fields that include botany, floral design, landscape architecture, farming, herbalism, and food justice, these influencers are creating change from the ground up. Profiled women include flower farmer Erin Benzakein; codirector of Soul Fire Farm Leah Penniman; plantswoman Flora Grubb; edible and cultural landscape designer Leslie Bennett; Caribbean-American writer and gardener Jamaica Kincaid; soil scientist Elaine Ingham; landscape designer Ariella Chezar; floral designer Amy Merrick, and many more. Rich with personal stories and insights, Jewell’s portraits reveal a devotion that transcends age, locale, and background, reminding us of the profound role of green growing things in our world—and our lives.

An interdisciplinary and quantitative account of human claims on the biosphere's stores of living matter, from prehistoric hunting to modern energy production. The biosphere—the Earth's thin layer of life—dates from nearly four billion years ago, when the first simple organisms appeared. Many species have exerted enormous influence on the biosphere's character and productivity, but none has transformed the Earth in so many ways and on such a scale as Homo sapiens. In Harvesting the Biosphere, Vaclav Smil offers an interdisciplinary and quantitative account of human claims on the biosphere's stores of living matter, from prehistory to the present day. Smil examines all harvests—from prehistoric man's hunting of megafauna to modern crop production—and all uses of harvested biomass, including energy, food, and raw materials. Without harvesting of the biomass, Smil points out, there would be no story of human evolution and advancing civilization; but at the same time, the increasing extent and intensity of present-day biomass harvests are changing the very foundations of civilization's well-being. In his detailed and comprehensive account, Smil presents the best possible quantifications of past and current global losses in order to assess the evolution and extent of biomass harvests. Drawing on the latest work in disciplines ranging from anthropology to environmental science, Smil offers a valuable long-term, planet-wide perspective on human-caused environmental change.

Covering the essential curriculum areas of human geography, physical geography, geology, and ecology, DK's First Earth Encyclopedia is a comprehensive introduction to the world around us. Children can learn where and how people live, how to use maps, weather, and world environments. With additional focus on changes to the environment, it will inspire younger readers to think about their own place in the world. With superb artwork and straightforward text, plus all the exciting First Reference features such as buttons and quizzes, the DK First Earth Encyclopedia makes it all simple to understand.

What determines whether complex life will arise on a planet, or even any life at all? Questions such as these are investigated in this groundbreaking book. In doing so, the authors synthesize information from astronomy, biology, and paleontology, and apply it to what we know about the rise of life on Earth and to what could possibly happen elsewhere in the universe. Everyone who has been thrilled by the recent discoveries of extrasolar planets and the indications of life on Mars and the Jovian moon Europa will be fascinated by Rare Earth, and its implications for those who look to the heavens for companionship.

Earth's atmospheric layers include the exosphere, thermosphere, mesosphere, stratosphere, and troposphere. How and why have scientists divided Earth's atmosphere into these layers? What exactly are these layers made up of? What happens in each layer? Readers will learn the answers to these questions and more in this enriching text that supports curricular science studies. Readers will identify the various traits of each of the atmospheric layers, ascertain their functions, and appreciate their significance in regulating conditions on Earth.