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Ice Ages and Astronomical Causes by Richard A. Muller,Gordon J. MacDonald Pdf
It is not possible to understand the present or future climate unless scientists can account for the enormous and rapid cycles of glaciation that have taken place over the last million years, and which are expected to continue into the future. A great deal has happened in the theory of the ice ages over the last decade, and it is now widley accepted that ice ages are driven by changes in the Earth's orbit. The study of ice ages is very inter-disciplinary, covering geology, physics, glaciology, oceanography, atmospheric science, planetary orbit calculations astrophysics and statistics.
This book studies the history and gives an analysis of extreme climate change on Earth. In order to provide a long-term perspective, the first chapter briefly reviews some of the wild gyrations that occurred in the Earth’s climate hundreds of millions of years ago: snowball Earth and hothouse Earth. Coming closer to modern times, the effects of continental drift, particularly the closing of the Isthmus of Panama are believed to have contributed to the advent of ice ages in the past three million years. This first chapter sets the stage for a discussion of ice ages in the geological recent past (i.e. within the last three million years, with an emphasis on the last few hundred thousand years). The second chapter discusses geological evidence for ice ages – how geologists surmised their existence prior to actual subsurface data that proved the theory. The following two chapters look at ice cores (primarily from Greenland and Antarctica). Chapter 3 discusses how ice core data is processed and Chapter 4 summarizes data obtained from ice cores. Chapter 5 discusses the processing of data obtained from ocean sediments, and summarizes the results, while the following chapter discusses data from other sources, such as "Devil’s Cave." Chapter 7 summarizes the experimental results from Chapters 4, 5, and 6. It provides the foundation for comparison with theories in later chapters. In a perfect world, this data would be totally separate and disconnected from theory. Unfortunately, as the author shows, dating of much of the data was accomplished by "tuning" to the astronomical theory, which introduces circular reasoning. Chapter 8 provides a brief overview of the various theories that have been devised to "explain" the patterns of alternating ice ages and interglacials that have occurred over the past three million years. This serves as an introduction to the following three chapters which presents the astronomical theory in its various manifestations, compare the astronomical theory with data, and then compare other theories with data. Finally, Chapter 12 summarizes what we think we know about ice ages and, more importantly, what we don’t know.
The Origin and Decline of the Ice Ages by Alan E. Dover Pdf
"This work includes a pictorial explanation of the ice ages and ice age flooding, a corollary of the book 'The dynamics of spiral planetary motion', which has revealed the elusive cause of the mysterious 'Ice Ages'."-- Back cover.
Ice Ages by John Imbrie,Katherine Palmer Imbrie Pdf
Scientists charged with producing a map of the earth during the last ice age ultimately confirmed the theory that the earth's irregular orbital motions account for the bizarre climatic changes which bring on ice ages. This book tells the story of those periods--what they were like, why they occurred, and when the next ice age is due.
The Change in the Climate and Its Cause, Giving the Date of the Last Ice Age Based on a Recent Astronomical Discovery and Geological Research by R. A. Marriott Pdf
Many of the earliest books, particularly those dating back to the 1900s and before, are now extremely scarce and increasingly expensive. We are republishing these classic works in affordable, high quality, modern editions, using the original text and artwork.
The Genesis Flood by John C. Whitcomb (Jr.),Henry Madison Morris Pdf
Over fifty years ago Henry Morris and John Whitcomb joined together to write a controversial book that sparked dialogue and debate on Darwin and Jesus, science and the Bible, evolution and creation -- culminating in what would later be called the birth of the modern creation science movement. Now, fifty years, forty-nine printings, and 300,000 copies after the initial publication of The Genesis Flood, P & R Publishing has produced a fiftieth anniversary edition of this modern classic. - Back cover.
Discusses the evidence for the existence of ice ages, explains what glaciers are, and presents the many explanations offered for the causes of ice ages with emphasis on the astronomical theory. Also considers the effects of future climatic changes.
"Life on Earth will come to an end. It's simply a matter of when and how. From the likely consequences of climate change to the inevitable destruction of the earth in the far future, this 'Very Short Introduction' covers a range of 'end of the world scenarios', including Greenhouse Earth, another Ice Age, asteroid and coment impact, supervocanoes, and mega-tsunami. Exploring the potential catastrophes that face the planet, Bill McGuire assesses both the probability of these events and our chances of survival. This new edition brings our understanding of global disasters and risk research up-to-date, by using recent case studies from around the world, and incorporating recent research on climate change and threats from space"--Cover flap.
In this engrossing and accessible book, Doug Macdougall explores the causes and effects of ice ages that have gripped our planet throughout its history, from the earliest known glaciation—nearly three billion years ago—to the present. Following the development of scientific ideas about these dramatic events, Macdougall traces the lives of many of the brilliant and intriguing characters who have contributed to the evolving understanding of how ice ages come about. As it explains how the great Pleistocene Ice Age has shaped the earth's landscape and influenced the course of human evolution, Frozen Earth also provides a fascinating look at how science is done, how the excitement of discovery drives scientists to explore and investigate, and how timing and chance play a part in the acceptance of new scientific ideas. Macdougall describes the awesome power of cataclysmic floods that marked the melting of the glaciers of the Pleistocene Ice Age. He probes the chilling evidence for "Snowball Earth," an episode far back in the earth's past that may have seen our planet encased in ice from pole to pole. He discusses the accumulating evidence from deep-sea sediment cores, as well as ice cores from Greenland and the Antarctic, that suggests fast-changing ice age climates may have directly impacted the evolution of our species and the course of human migration and civilization. Frozen Earth also chronicles how the concept of the ice age has gripped the imagination of scientists for almost two centuries. It offers an absorbing consideration of how current studies of Pleistocene climate may help us understand earth's future climate changes, including the question of when the next glacial interval will occur.
