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.

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.

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.

A “poignant [and] powerful” novel about a 1920s Midwestern community in the aftermath of a devastating tornado (The New Yorker). In March 1925, the worst tornado in the nation’s history will descend without warning on the small town of Marah, Illinois. By nightfall, hundreds will be homeless and hundreds more will lie in the streets, dead or grievously injured. Only one man, Paul Graves, will still have everything he started the day with—his family, his home, and his business, all miraculously intact. This “absolutely gorgeous” novel follows Paul Graves and his young family in the year after the storm as they struggle to comprehend their own fate and that of their devastated town (The New York Times). They watch helplessly as Marah tries to resurrect itself from the ruins and as their friends and neighbors begin to wonder how one family, and only one, could be exempt from terrible misfortune. As the town begins to recover, the family miscalculates the growing resentment and hostility around them with tragic results, in an “extraordinarily moving” portrayal of survivor’s guilt and the frenzy of bereavement following a disaster (Financial Times). “All the big themes are here—chance, fate, loyalty, revenge, guilt, jealousy . . . Inspired by actual events surrounding the 1925 Tri-State tornado, the worst in U.S. history, Southwood’s poignantly penetrating examination of the psychic cost of survival is breathtaking in its depth of understanding.” —Booklist (starred review) “What’s most exciting about Southwood’s debut is her prose, which is reminiscent of Willa Cather’s in its ability to condense the large, ineffable melancholy of the plains into razor-sharp images.” —The Daily Beast

A comprehensive, systematic, analytically unified, and interdisciplinary treatment of energy in nature and society, from solar radiation and photosynthesis to our fossil fueled civilization and its environmental consequences.

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.

This multimedia book generates a rich conversation about food sovereignty, initiated by eight collaborators in the Legacies Project, a unique intergenerational and intercultural exchange between food justice activists and artists--Canadian, American, and Mexican, settler and Indigenous, elders and youth. Their stories come alive in video clips and short photo essays around cross-cutting themes. In addition, an instructor's guide offers ways to engage students and activists in critical questions about food and settler-Indigenous relationships, through constantly evolving contexts, linking to other resources, text-based and visual, print and online.

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.

Biological nitrogen fixation provides more than 50% of the total annual input of the essential element nitrogen to world agriculture. Thus, it is of immense agronomic importance and critical to food supplies, particularly in developing countries. This book, with chapters authored by internationally renowned experts, provides a comprehensive and detailed account of the fascinating history of the process - including the surprising discoveries of molybdenum-independent nitrogenases and superoxide-dependent nitrogenase; a review of Man's attempts to emulate the biological process - most successfully with the commercially dominant Haber-Bosch process; and the current state of the understanding art with respect to the enzymes - called nitrogenases - responsible for biological nitrogen fixation. The initial chapters use a historical approach to the biological and industrial processes, followed by an overview of assay methodologies. The next set of chapters focuses on the classical enzyme, the molybdenum nitrogenase, and details its biosynthesis, structure, composition, and mechanism of action as well as detailing both how variants of its two component proteins are constructed by recombinant DNA technology and how computational techniques are being applied. The sophisticated chemical modelling of the metal-containing clusters in the enzyme is reviewed next, followed by a description of the two molybdenum-independent nitrogenases - first, the vanadium-containing enzyme and then the iron-only nitrogenase - together with some thoughts as to why they exist! Then follows an up-to-date treatment of the clearly "non-classical" properties of the superoxide-dependent nitrogenase, which more closely resembles molybdenum-containing hydroxylases and related enzymes, like nitrate reductase, that it does the other nitrogenases. Each chapter contains an extensive list of references. This book is the self-contained first volume of a comprehensive seven-volume series. No other available work provides the up-to-date and in-depth coverage of this series and this volume. This book is intended to serve as an indispensable reference work for all scientists working in this area, including agriculture and the closely related metals-in-biology area; to assist students to enter this challenging area of research; and to provide science administrators easy access to vital relevant information.

Today, a new generation of farmers are working to heal both the land and agriculture's legacy of racism. In Healing Grounds, Liz Carlisle tells the stories of Indigenous, Black, Latinx, and Asian American farmers who are reviving their ancestors' methods of growing food--techniques long suppressed by the industrial food system. This, Carlisle shows, is the true regenerative agriculture: a holistic approach that values diversity in both plants and people. It has the power to combat climate change, but only if we reckon with agriculture's history of oppression. Through rich storytelling, Carlisle lays bare that painful history, while lifting up the voices of farmers who are working to restore our soil, our climate, and our humanity.