Our oceans are hugely important, as a source of food and mineral wealth, as an environment for a vast variety of wildlife, for the role they play in climate regulation, and as part of the biogeochemical cycles of carbon, nitrogen, and other elements critical to life. Dorrik Stow explores what we know about how oceans originate and are maintained.

The importance of the oceans to life on Earth cannot be overstated. Liquid water covers more than 70% of our planet's surface and, in past geological time, has spread over 85%. Life on Earth began in the oceans over 3.5 billion years ago and remained there for the great majority of that time. Today the seas still provide 99% of habitable living space, the largest repository of biomass, and holds the greatest number of undiscovered species on the planet. Our oceans are vital for the regulation of climate, and with global warming and decreasing land area, they have become increasingly important as the source of food, energy in the form of oil and gas, and for their mineral wealth. Oceans also form a key part of the biogeochemical cycles of carbon, nitrogen, and other elements critical to life. Nutrients in upwelling areas are spread by ocean currents, and the plankton of the seas supports a wealth of wildlife. In this Very Short Introduction Dorrik Stow analyses these most important components of our blue planet and considers their relationship with, and exploitation by, humans. He shows how the oceans are an essential resource to our overpopulated world, and discusses why exploration and greater scientific understanding of the oceans, their chemistry, and their mineral wealth are now a high priority. Stow also explores what we know of how oceans originate, and evolve and change; the shape of the seafloor and nature of its cover; the physical processes that stir the waters and mix such a rich chemical broth; and the inseparable link between oceans and climate. As polar ice melts and sea-levels rise, countless millions who have made their homes on low-lying lands close to the sea are threatened. As scientific exploration of the seas gathers pace, the new knowledge gained of the ocean-Earth systems and their interaction with the human environment is vital to our understanding of how we can preserve these ultimately fragile environments. ABOUT THE SERIES: The Very Short Introductions series from Oxford University Press contains hundreds of titles in almost every subject area. These pocket-sized books are the perfect way to get ahead in a new subject quickly. Our expert authors combine facts, analysis, perspective, new ideas, and enthusiasm to make interesting and challenging topics highly readable.

Since their discovery in 1947, the Dead Sea Scrolls have become an icon in popular culture that transcends their status as ancient Jewish manuscripts. Everyone has heard of the Scrolls, but amidst the conspiracies, the politics, and the sensational claims, it can be difficult to separate the myths from the reality. In this Very Short introductions, Timothy Lim discusses the cultural significance of the finds, and the religious, political and legal controversies during the seventy years of study since the discovery. He also looks at the contribution the Scrolls have made to our understanding of the Old Testament or Hebrew Bible, and the origins of early Christianity. Exploring the most recent scholarly discussions on the archaeology of Khirbet Qumran, and the study of the biblical texts, the canon, and the history of the Second Temple Period, he considers what the scrolls reveal about sectarianism in early Judaism. Was the archaeological site of Qumran a centre of monastic life, a fortress, a villa, or a pottery factory? Why were some of their biblical texts so different from the ones that we read today? Did they have 'a Bible'? Who were the Essenes and why did they think that humanity is to be divided between 'the sons of light' and those in darkness? And, finally, do the Scrolls reflect the teachings of the earliest followers of Jesus? ABOUT THE SERIES: The Very Short Introductions series from Oxford University Press contains hundreds of titles in almost every subject area. These pocket-sized books are the perfect way to get ahead in a new subject quickly. Our expert authors combine facts, analysis, perspective, new ideas, and enthusiasm to make interesting and challenging topics highly readable.

World Oceans: A Reference Handbook offers an in-depth discussion of the world's oceans. It discusses the marine life that is dependent on the sea as well as the problems threatening the health of the ocean and its wildlife. World Oceans: A Reference Handbook opens with an overview of the history of human knowledge and understanding of the oceans and cryosphere, along with related scientific, technological, social, political, and other factors. The second chapter presents and discusses about a dozen major problems facing the Earth's oceans today, along with possible solutions. The third chapter provides interested individuals with an opportunity to express their thoughts and ideas on today's ocean issues, and remaining chapters provide additional resources, such as a bibliography, a chronology, and a glossary, to assist the reader in her or his further study of the issue. Where most books for young adults learning about world oceans take a purely expository treatment, this book provides readers with additional information as well as resources, allowing them to learn more and inform further study of the subject.

In this Very Short Introduction, Mark Maslin looks at all aspects of climate, from the physical and chemical factors that drive it and how climate differs from weather, to how climate has affected human settlements and the cyclic features of it. He ends with a look at climate change and our current approaches to solving it.

A clear-eyed examination of how Australia should approach the complex security challenges at play in its maritime domain Security starts at home ... Australia has drawn closer to many of its Asia-Pacific neighbours in recent years, but 'when push comes to shove, it continues to look well beyond the oceans and regions that surround it to the distant horizons of Europe and North America for its ultimate security guarantee'. In Girt by Sea, international-relations experts Rebecca Strating and Joanne Wallis instead turn their gazes to Australia's near region, focusing on the six maritime domains central to its national interests: the north seas (the Timor, Arafura and Coral Seas and the Torres Strait), the Western Pacific, the South China Sea, the South Pacific, the Indian Ocean and the Southern Ocean. In so doing, they reimagine how Australia should understand its strategic challenges and find lasting security.

La 4e de couv. indique : "The concept of plate tectonics is relatively new - it was only in the 1960s that the idea that continents drifted with respect to one another came to be accepted. Plate tectonics now forms one of geology's basic principles and explains much of the large-scale structure and phenomena we see on Earth today. In this Very Short Introduction Peter Molnar explores the impact that plate tectonics has had on our understanding of Earth : how the ocean floor forms, widens, and disappears ; why earthquakes and volcanoes are found in distinct zones ; and how the great mountain ranges of the world were built. As the Himalaya continues to grow, the Atlantic widens, and new ocean floor is forming, the mechanisms of plate tectonics continue to alter the surface of our planet."

The Dead Sea Scrolls are one of the most important archaeological discoveries of the last century. They have great historical, religious, and linguistic significance, not least in relation to the transmission of many of the books which came to be included in the Hebrew Bible. This companion comprises over 70 articles, exploring the entire body of the key texts and documents labelled as Dead Sea Scrolls. Beginning with a section on the complex methods used in discovering, archiving and analysing the Scrolls, the focus moves to consideration of the Scrolls in their various contexts: political, religious, cultural, economic and historical. The genres ascribed to groups of texts within the Scrolls- including exegesis and interpretation, poetry and hymns, and liturgical texts - are then examined, with due attention given to both past and present scholarship. The main body of the Companion concludes with crucial issues and topics discussed by leading scholars. Complemented by extensive appendices and indexes, this Companion provides the ideal resource for those seriously engaging with the Dead Sea Scrolls.

Biogeography is the study of geographic variation in all characteristics of life - ranging from genetic, morphological and behavioural variation among regional populations of a species, to geographic trends in diversity of entire communities across our planet's sufrace. From the ancient hunters and gatherers to the earliest naturalists, Charles Darwin, Alfred Russel Wallace, and scientists today, the search for patterns in life has provided insights that proved invaluable for understanding the natural world. And many, if not most, of the compelling kaleidoscope of patterns in biological diversity make little sense unless placed in an explicit geographic context. The Very Short Introduction explains the historical development of the field of biogeography, its fundamental tenets, principles and tools, and the invaluable insights it provides for understanding the diversity of life in the natural world. As Mark Lomolino shows, key questions such as where species occur, how they vary from place to place, where their ancestors occurred, and how they spread across the globe, are essential for us to develop effective strategies for conserving the great menagerie of life across our planet. ABOUT THE SERIES: The Very Short Introductions series from Oxford University Press contains hundreds of titles in almost every subject area. These pocket-sized books are the perfect way to get ahead in a new subject quickly. Our expert authors combine facts, analysis, perspective, new ideas, and enthusiasm to make interesting and challenging topics highly readable.