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Author: National Research Council Publisher: National Academies Press ISBN: 0309209196 Category : Science Languages : en Pages : 153
Book Description
There is little dispute within the scientific community that humans are changing Earth's climate on a decadal to century time-scale. By the end of this century, without a reduction in emissions, atmospheric CO2 is projected to increase to levels that Earth has not experienced for more than 30 million years. As greenhouse gas emissions propel Earth toward a warmer climate state, an improved understanding of climate dynamics in warm environments is needed to inform public policy decisions. In Understanding Earth's Deep Past, the National Research Council reports that rocks and sediments that are millions of years old hold clues to how the Earth's future climate would respond in an environment with high levels of atmospheric greenhouse gases. Understanding Earth's Deep Past provides an assessment of both the demonstrated and underdeveloped potential of the deep-time geologic record to inform us about the dynamics of the global climate system. The report describes past climate changes, and discusses potential impacts of high levels of atmospheric greenhouse gases on regional climates, water resources, marine and terrestrial ecosystems, and the cycling of life-sustaining elements. While revealing gaps in scientific knowledge of past climate states, the report highlights a range of high priority research issues with potential for major advances in the scientific understanding of climate processes. This proposed integrated, deep-time climate research program would study how climate responded over Earth's different climate states, examine how climate responds to increased atmospheric carbon dioxide and other greenhouse gases, and clarify the processes that lead to anomalously warm polar and tropical regions and the impact on marine and terrestrial life. In addition to outlining a research agenda, Understanding Earth's Deep Past proposes an implementation strategy that will be an invaluable resource to decision-makers in the field, as well as the research community, advocacy organizations, government agencies, and college professors and students.
Author: National Research Council Publisher: National Academies Press ISBN: 0309209196 Category : Science Languages : en Pages : 153
Book Description
There is little dispute within the scientific community that humans are changing Earth's climate on a decadal to century time-scale. By the end of this century, without a reduction in emissions, atmospheric CO2 is projected to increase to levels that Earth has not experienced for more than 30 million years. As greenhouse gas emissions propel Earth toward a warmer climate state, an improved understanding of climate dynamics in warm environments is needed to inform public policy decisions. In Understanding Earth's Deep Past, the National Research Council reports that rocks and sediments that are millions of years old hold clues to how the Earth's future climate would respond in an environment with high levels of atmospheric greenhouse gases. Understanding Earth's Deep Past provides an assessment of both the demonstrated and underdeveloped potential of the deep-time geologic record to inform us about the dynamics of the global climate system. The report describes past climate changes, and discusses potential impacts of high levels of atmospheric greenhouse gases on regional climates, water resources, marine and terrestrial ecosystems, and the cycling of life-sustaining elements. While revealing gaps in scientific knowledge of past climate states, the report highlights a range of high priority research issues with potential for major advances in the scientific understanding of climate processes. This proposed integrated, deep-time climate research program would study how climate responded over Earth's different climate states, examine how climate responds to increased atmospheric carbon dioxide and other greenhouse gases, and clarify the processes that lead to anomalously warm polar and tropical regions and the impact on marine and terrestrial life. In addition to outlining a research agenda, Understanding Earth's Deep Past proposes an implementation strategy that will be an invaluable resource to decision-makers in the field, as well as the research community, advocacy organizations, government agencies, and college professors and students.
Author: Allie Duzett Publisher: ISBN: 9781790931576 Category : Languages : en Pages : 230
Book Description
In the Deep Past paradigm, you lived before you were born. This is not a book about reincarnation: it is a book about the idea that you were who you are long before you took your first breath on earth. It is a book about the idea that before you were born, you participated in many events, and made many decisions--and that your decisions and your experiences back then continue to impact your life today. Deep Past Resolution is an exploration of the concept of pre-earth life, complete with exercises to help readers identify and resolve their own "deep past" events that may still be impacting them today.Understanding pre-earth life is crucial to understanding life in the here and now. When the role of agency in pre-earth life is properly understood, the entire earth experience comes into context. This book was not written to convey any "absolute truths," but rather a set of perspectives that can help anyone of any belief system find greater perspective on their life experiences.
Author: Eugene Linden Publisher: RosettaBooks ISBN: 1948122375 Category : Fiction Languages : en Pages : 338
Book Description
“A fascinating thriller… Linden does a masterly job of integrating intriguing speculative science into a page-turning plot.” —Publisher's Weekly, starred review If nature could invent intelligence of our scale in a blink of geologic time, who’s to say it hasn’t been done before… A routine dig in Kazakhstan takes a radical turn for thirty-two-year-old anthropologist Claire Knowland when a stranger turns up at the site with a bizarre find from a remote section of the desolate Kazakh Steppe. Her initial skepticism of this mysterious discovery gives way to a realization that the find will shake the very foundations of our understanding of evolution and intelligence. Corrupt politics of Kazakhstan force Claire to take reckless chances with the discovery. Among the allies she gathers in her fight to save herself and bring the discovery to light is Sergei Anachev, a brilliant but enigmatic Russian geologist who becomes her unlikely protector even as he deals with his own unknown crisis. Ultimately, Claire finds herself fighting not just for the discovery and her academic reputation, but for her very life as great power conflict engulfs the unstable region and an unscrupulous oligarch attempts to take advantage of the chaos. Drawing on Eugene Linden’s celebrated non-fiction investigations into what makes humans different from other species, this international thriller mixes fact and the fantastical, the realities of academic politics, and high stakes geopolitics—engaging the reader every step of the way.
Author: Suman Lata Tripathi Publisher: John Wiley & Sons ISBN: 1119861829 Category : Technology & Engineering Languages : en Pages : 516
Book Description
Enables readers to understand the fundamental concepts of machine and deep learning techniques with interactive, real-life applications within signal and image processing Machine Learning Algorithms for Signal and Image Processing aids the reader in designing and developing real-world applications using advances in machine learning to aid and enhance speech signal processing, image processing, computer vision, biomedical signal processing, adaptive filtering, and text processing. It includes signal processing techniques applied for pre-processing, feature extraction, source separation, or data decompositions to achieve machine learning tasks. Written by well-qualified authors and contributed to by a team of experts within the field, the work covers a wide range of important topics, such as: Speech recognition, image reconstruction, object classification and detection, and text processing Healthcare monitoring, biomedical systems, and green energy How various machine and deep learning techniques can improve accuracy, precision rate recall rate, and processing time Real applications and examples, including smart sign language recognition, fake news detection in social media, structural damage prediction, and epileptic seizure detection Professionals within the field of signal and image processing seeking to adapt their work further will find immense value in this easy-to-understand yet extremely comprehensive reference work. It is also a worthy resource for students and researchers in related fields who are looking to thoroughly understand the historical and recent developments that have been made in the field.
Author: Philippe Bertrand Publisher: Springer Nature ISBN: 3030677737 Category : Science Languages : en Pages : 573
Book Description
Earth is, to our knowledge, the only life-bearing body in the Solar System. This extraordinary characteristic dates back almost 4 billion years. How to explain that Earth is teeming with organisms and that this has lasted for so long? What makes Earth different from its sister planets Mars and Venus? The habitability of a planet is its capacity to allow the emergence of organisms. What astronomical and geological conditions concurred to make Earth habitable 4 billion years ago, and how has it remained habitable since? What have been the respective roles of non-biological and biological characteristics in maintaining the habitability of Earth? This unique book answers the above questions by considering the roles of organisms and ecosystems in the Earth System, which is made of the non-living and living components of the planet. Organisms have progressively occupied all the habitats of the planet, diversifying into countless life forms and developing enormous biomasses over the past 3.6 billion years. In this way, organisms and ecosystems "took over" the Earth System, and thus became major agents in its regulation and global evolution. There was co-evolution of the different components of the Earth System, leading to a number of feedback mechanisms that regulated long-term Earth conditions. For millennia, and especially since the Industrial Revolution nearly 300 years ago, humans have gradually transformed the Earth System. Technological developments combined with the large increase in human population have led, in recent decades, to major changes in the Earth's climate, soils, biodiversity and quality of air and water. After some successes in the 20th century at preventing internationally environmental disasters, human societies are now facing major challenges arising from climate change. Some of these challenges are short-term and others concern the thousand-year evolution of the Earth's climate. Humans should become the stewards of Earth.
Author: Beth N. Orcutt Publisher: Cambridge University Press ISBN: 1108477496 Category : Nature Languages : en Pages : 687
Book Description
A comprehensive guide to carbon inside Earth - its quantities, movements, forms, origins, changes over time and impact on planetary processes. This title is also available as Open Access on Cambridge Core.
Author: Daniel Lord Smail Publisher: Univ of California Press ISBN: 0520252896 Category : History Languages : en Pages : 287
Book Description
When does history begin? What characterizes it? This book dissolves the logic of a beginning based on writing, civilization, or historical consciousness and offers a model for a history that escapes the continuing grip of the Judeo-Christian time frame. It lays out a new case for bringing neuroscience and neurobiology into the realm of history.
Author: National Research Council Publisher: National Academies Press ISBN: 0309219248 Category : Science Languages : en Pages : 132
Book Description
The 2001 National Research Council (NRC) report Basic Research Opportunities in Earth Science (BROES) described how basic research in the Earth sciences serves five national imperatives: (1) discovery, use, and conservation of natural resources; (2) characterization and mitigation of natural hazards; (3) geotechnical support of commercial and infrastructure development; (4) stewardship of the environment; and (5) terrestrial surveillance for global security and national defense. This perspective is even more pressing today, and will persist into the future, with ever-growing emphasis. Today's world-with headlines dominated by issues involving fossil fuel and water resources, earthquake and tsunami disasters claiming hundreds of thousands of lives and causing hundreds of billions of dollars in damages, profound environmental changes associated with the evolving climate system, and nuclear weapons proliferation and testing-has many urgent societal issues that need to be informed by sound understanding of the Earth sciences. A national strategy to sustain basic research and training of expertise across the full spectrum of the Earth sciences is motivated by these national imperatives. New Research Opportunities in the Earth Sciences identifies new and emerging research opportunities in the Earth sciences over the next decade, including surface and deep Earth processes and interdisciplinary research with fields such as ocean and atmospheric sciences, biology, engineering, computer science, and social and behavioral sciences. The report also identifies key instrumentation and facilities needed to support these new and emerging research opportunities. The report describes opportunities for increased cooperation in these new and emerging areas between EAR and other government agency programs, industry, and international programs, and suggests new ways that EAR can help train the next generation of Earth scientists, support young investigators, and increase the participation of underrepresented groups in the field.
Author: Michael D. Carrasco Publisher: University Press of Florida ISBN: 0813070171 Category : Social Science Languages : en Pages : 375
Book Description
Society for Ethnobotany Daniel F. Austin Award The important cultural role of an ancient, endangered plant Under the Shade of Thipaak is the first book to explore the cultural role of cycads, plants that evolved over 250 million years ago and are now critically endangered, in the ancient and modern Mesoamerican and Caribbean worlds. This volume demonstrates how these ancient plants have figured prominently in regional mythologies, rituals, art, and foodways from the Pleistocene-Holocene transition to the present. Contributors discuss the importance of cycads from a variety of disciplinary perspectives, including biology and population genetics, historical ecology, archaeology, art history, linguistics, and conservation and sustainability. Chapters pay special attention to the enduring conceptual relationships between cycads and maize. This book demonstrates how a close examination of cycad-human relationships can motivate conservation of these threatened plants in ways that engage local communities, as well as promote the significance of ancient and modern practices that unite nature and culture. Contributors: Francisco Barona-Gómez | Emanuel Bojorquez Quintal | Mark A. Bonta | Edder Daniel Bustos-Díaz | Dánae Cabrera-Toledo | Michael Calonje | Michael D. Carrasco | Angélica Cibrián-Jaramillo | Joshua D. Englehardt | Jorge González-Astorga | Naishla M. Gutiérrez-Arroyo | José Saíd Gutiérrez-Ortega | Thomas Hart | Jaime R. Pagán-Jiménez | Francisco Pérez-Zavala | Luis Rojas Abarca | Esteban Sánchez Rodríguez | Dennis William Stevenson | Amber M. VanDerwarker | Luis R. Velázquez Maldonado | Andrew P. Vovides
Author: Joanna Bruck Publisher: Taylor & Francis ISBN: 1000939553 Category : Social Science Languages : en Pages : 181
Book Description
First published in 1999. This groundbreaking volume addresses issues central to the study of prehistoric settlement including group memory, the transmission of ideology and the impact of mobility and seasonality on the construction of social identity. Building on these themes, the contributors point to new ways of understanding the relationship between settlement and landscape by replacing Capitalist models of spatial relations with more intimate histories of place.
Author: National Research Council
Author: National Research Council
Author: Allie Duzett
Author: Eugene Linden
Author: Suman Lata Tripathi
Author: Philippe Bertrand
Author: Beth N. Orcutt
Author: Daniel Lord Smail
Author: National Research Council
Author: Michael D. Carrasco
Author: Joanna Bruck