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| oceans: a very short introduction: Oceans Dorrik A. V. Stow, 2017 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. |
| oceans: a very short introduction: Marine Biology Philip V. Mladenov, 2020-02-27 The oceans are our planet's most distinctive and imposing natural habitat. They cover 71 per cent of its surface; support a remarkably diverse and exquisitely adapted array of life forms, from microscopic viruses, bacteria, and plankton to the largest existing animals; and possess many of Earth's most significant, intriguing, and inaccessible ecosystems. In an era in which humans are significantly altering the global environment, the oceans are undergoing rapid and profound changes. The study of marine biology is thus taking on added importance and urgency as people struggle to understand and manage these changes to protect our marine ecosystems. Healthy oceans produce half of the oxygen we breathe; stabilize our climate; create ecosystems that protect our coasts from storms; provide us with abundant food; and host diverse organisms that provide us with natural products for medicine and biotechnology. In this Very Short Introduction, marine biologist Philip Mladenov provides an accessible and up-to-date overview of marine biology, offering a tour of marine life and marine processes that ranges from the unimaginably abundant microscopic organisms that drive the oceans' food web to the apex predators that we exploit for food; from polar ocean ecosystems to tropical coral reefs; and from the luxurious kelp beds of the coastal ocean to deep-ocean hydrothermal vents where life exists without the energy of the sun. Throughout the book he considers the human impacts on marine life including overfishing, plastic and nutrient pollution, the spread of exotic species, and ocean warming and acidification. He discusses the threats these pose to our welfare, and the actions required to put us on a path to a more sustainable relationship with our oceans so that they can be restored and protected for future generations. Mladenov concludes with a new chapter offering an inspiring vision for the future of our oceans in 2050 that can be realised if we are wise enough to accelerate actions already underway and be bold with implementing new approaches. The next decade will decide the state of the oceans that we leave behind for future generations. 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. |
| oceans: a very short introduction: Oceans Dorrik A. V. Stow, 2017 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. 0In 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. |
| oceans: a very short introduction: Oceans: A Very Short Introduction Dorrik Stow, 2018-01-25 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. |
| oceans: a very short introduction: Climate: A Very Short Introduction Mark Maslin, 2013-06-27 In this wide-ranging Very Short Introduction to climate, Mark Maslin considers all aspects of the global climate system, exploring and explaining the different components that control climate on Earth. He considers the processes that allow energy to reach the Earth and how it is redistributed around the planet by the ocean-atmosphere system; the relationship and differences between climate and the weather; how climate has affected life on Earth and human settlements; and the cyclic and quasi-cyclic features of climate such as the Milankovitch cycles and El Nino. He concludes by touching on the issue of climate change, and outlines some of the approaches that are now being taken to tackle it. 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. |
| oceans: a very short introduction: Weather Storm Dunlop, 2017 In this Very Short Introduction Storm Dunlop explains what weather is, what causes it, and how we measure it. Analysing the basic features of the atmosphere, its major wind systems and ocean currents, he shows how these drive the weather we experience.--Book cover. |
| oceans: a very short introduction: The Atmosphere Paul I. Palmer, 2017 In this Very Short introduction, Paul Palmer looks at the structure and basic physics and chemistry of the Earth's atmosphere, comparing it to the atmospheres of other planets, particularly our neighbors, Venus and Mars. Palmer looks at the effects of pollutants and climate change, and what may happen to our atmosphere in the future |
| oceans: a very short introduction: Global Warming Mark Maslin, 2007 Describes the evidence of global warming, its causes, its predicted impacts, and how its detrimental effects can be reduced. |
| oceans: a very short introduction: Earth System Science: A Very Short Introduction Tim Lenton, 2016-02-25 When humanity first glimpsed planet Earth from space, the unity of the system that supports humankind entered the popular consciousness. The concept of the Earth's atmosphere, biosphere, oceans, soil, and rocks operating as a closely interacting system has rapidly gained ground in science. This new field, involving geographers, geologists, biologists, oceanographers, and atmospheric physicists, is known as Earth System Science. In this Very Short Introduction, Tim Lenton considers how a world in which humans could evolve was created; how, as a species, we are now reshaping that world; and what a sustainable future for humanity within the Earth System might look like. Drawing on elements of geology, biology, chemistry, physics, and mathematics, Lenton asks whether Earth System Science can help guide us onto a sustainable course before we alter the Earth system to the point where we destroy ourselves and our current civilisation. 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. |
| oceans: a very short introduction: Microbiology: A Very Short Introduction Nicholas P. Money, 2014-12-04 In recent decades we have come to realize that the microbial world is hugely diverse, and can be found in the most extreme environments. Fungi, single-celled protists, bacteria, archaea, and the vast array of viruses and sub-viral particles far outnumber plants and animals. Microbes, we now know, play a critical role in ecosystems, in the chemistry of atmosphere and oceans, and within our bodies. The field of microbiology, armed with new techniques from molecular biology, is now one of the most vibrant in the life sciences. In this Very Short Introduction Nicholas P. Money explores not only the traditional methods of microscopy and laboratory culture but also the modern techniques of genetic detection and DNA sequencing, genomic analysis, and genetic manipulation. In turn he demonstrates how advances in microbiology have had a tremendous impact on the areas of medicine, agriculture, and biotechnology. 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. |
| oceans: a very short introduction: Viruses Dorothy H. Crawford, 2018 Viruses are big news. From pandemics such as HIV, swine flu, and SARS, we are constantly being bombarded with information about new lethal infections. In this Very Short Introduction, Dorothy Crawford demonstrates from their discovery and the unravelling of their intricate structures, how clever these entities really are. |
| oceans: a very short introduction: Coral Reefs Charles Sheppard, 2021-04-22 Very Short Introductions: Brilliant, Sharp, Inspiring Coral reefs are among the most beautiful, and most diverse, of ecosystems. Early seafarers were wary of them, naturalists were confused by them, yet many coastal people benefited greatly from these mysterious rocky structures that grew up to the surface of the sea. They have been rich in their supply of food, and they provided a breakwater from storms and high waves to countless coastal communities that developed from their protection. Their scale is enormous and their value high. Found in countless locations around the world, from the Indo-Pacific coral reef province to the Caribbean and Australia, they support both marine and human life. But today coral reefs are in trouble, with many dying or suffering from over-exploitation, pollution, and the warming and acidification of the oceans. Understanding reefs, their conservation and management, is vital, and so is conveying this to authority if we are to preserve these remarkable ecosystems. In this Very Short Introduction Charles Sheppard describes the complex structure and interdependencies of a reef, how reefs have evolved, the diversity of marine life that they support, and their importance to the human population who live beside them. This new edition describes the latest research on the complex symbioses of coral animals with microorganisms. It also highlights the scale of the challenge facing our reefs today, following recent ocean heatwaves - part of wider climate disruption - that killed half the world's reefs, and considers what can be done to preserve these essential and vibrant ecosystems. 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. |
| oceans: a very short introduction: Waves: A Very Short Introduction Mike Goldsmith, 2018-11-15 We live in a world of waves. The Earth shakes to its foundations, the seas and oceans tremble incessantly, sounds reverberate through land, sea, and air. Beneath the skin, our brains and bodies are awash with waves of their own, and the Universe is filled by a vast spectrum of electromagnetic radiation, of which visible light is the narrowest sliver. Casting the net even wider, there are mechanical waves, quantum wave phenomena, and the now clearly detected gravitational waves. Look closer and deeper and more kinds of waves appear, down to the most fundamental level of reality. This Very Short Introduction looks at all the main kinds of wave, their sources, effects, and uses. Mike Goldsmith discusses how wave motion results in a range of phenomena, from reflection, diffraction, interference, and polarization in the case of light waves to beats and echoes for sound. All waves, however different, share many of the same features, and, as Goldsmith shows, for all their complexities many of their behaviours are fundamentally simple. 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. |
| oceans: a very short introduction: Climate Change Mark Maslin, 2014 In the new edition of Climate Change: A Very Short Introduction (previously titled Global Warming), Mark Maslin explores all of the key debates. Examining the most recent scientific research, he looks what climate change is, its impact on our planet, and why it's such a complex problem to solve. |
| oceans: a very short introduction: The Great Ocean David Igler, 2013-05-09 A groundbreaking and lyrically written work that explores the world of the Pacific Ocean. |
| oceans: a very short introduction: Plate Tectonics Peter Molnar, 2015-03-26 The 1960s revealed a new and revolutionary idea in geological thought: that the continents drift with respect to one another. After having been dismissed for decades as absurd, the concept gradually became part of geology's basic principles. We now know that the Earth's crust and upper mantle consist of a small number of rigid plates that move, and there are significant boundaries between pairs of plates, usually known as earthquake belts. Plate tectonics now explains much of the structure and phenomena we see today: how oceans form, widen, and disappear; why earthquakes and volcanoes are found in distinct zones which follow plate boundaries; how the great mountain ranges of the world were built. The impact of plate tectonics is studied closely as these processes continue: the Himalaya continues to grow, the Atlantic is widening, and new oceans are forming. In this Very Short Introduction Peter Molnar provides a succinct and authoritative account of the nature and mechanisms of plate tectonics and its impact on our understanding of Earth. 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. |
| oceans: a very short introduction: Navigation: A Very Short Introduction Jim Bennett, 2017-02-10 From the Bronze Age mariners of the Mediterranean to contemporary sailors using satellite-based technologies, the history of navigation at sea, the art of finding a position and setting a course, is fascinating. The scientific and technological developments that have enabled accurate measurements of position were central to exploration, trade, and the opening up of new continents, and the resulting journeys taken under their influence have had a profound influence on world history. In this Very Short Introduction Jim Bennett looks at the history of navigation, starting with the distinctive cultures of navigation that are defined geographically - the Mediterranean Sea, and the Pacific, Indian, and Atlantic Oceans. He shows how the adoption of mathematical methods, the use of instruments, the writing of textbooks and the publication of charts all combined to create a more standardised practice. Methods such as longitude-finding by chronometer and lunar distance were complemented by the routine business of recording courses and reckoning position 'by account'. Bennett also introduces the incredible array of instruments relied on by sailors, from astrolabes, sextants, and chronometers, to our more modern radio receivers, electronic equipment, and charts, and highlights the crucial role played by the individual qualities of endeavour and resourcefulness from mathematicians, scientists, and seamen in finding their way at sea. The story of navigation combines the societal, the technical, and the human, and it was vital for shaping the modern world. 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. |
| oceans: a very short introduction: Paul: A Very Short Introduction E. P. Sanders, 2001-02-22 In this original introduction to Paul's life and thought Sanders pays equal attention to Paul's fundamental convictions and the sometimes convoluted ways in which they were worked out. |
| oceans: a very short introduction: Insects Simon Leather, 2022-05-26 To date, more than a million insect species have been described, with probably at least another 5-8 million species waiting in the wings for a name. Insects are a fascinatingly diverse and beautiful spectrum of animals. They range in size from the tiny parasitic wasp, measuring a mere 139μm, to the aptly named Titan beetle, which can reach lengths of up to 17cm. They can be found on all continents of the world, from the Sahara Desert to the frozen wastes of Antarctica; in caves, under the ground, inside plants, other insects and vertebrates, in rivers, streams, lakes and ponds, in puddles, in the watery interiors of pitcher plants; and in our houses. While no insects live beneath the waves, the intrepid sea skaters skim the surface of some of the world's oceans. This Very Short Introduction explores the extraordinary world of insects. It analyses insect evolution, taxonomy and development, and describes their behaviour, their life styles, and the interactions they have with other insects and other animals. As Simon Leather shows, insects are the bedrock on which human civilisation rests; without them we would almost certainly not exist. Although they can be seen as pests of our crops plants, they are also invaluable for pollinating our flowering plants and are an invaluable link in all land ecosystems. As they face challenges from climate change and pesticides it has never been more important to understand these oft-dismissed creatures. Very Short Introductions: Brilliant, Sharp, Inspiring 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. |
| oceans: a very short introduction: The New Ocean Bryn Barnard, 2017 The Earth our home is covered mostly with water: the wide, deep, salty, and very blue ocean. It regulates our climate in a way that makes life as we know it possible. This huge ocean is full of an amazing amount of life, most of which is too small to see. But life in the ocean is in trouble. The ocean is becoming hotter, more polluted, and, in places, empty of life. The right amount of warming is good for us, but too much warming is causing shifts that are not good for life in the ocean. Global warming, pollution, and overfishing are creating a New Ocean, in which life is changing drastically. This book tells the stories of the probable fates of six sea dwellers: jellyfish, orcas, sea turtles, tuna, corals, and blue-green algae. What becomes of them may help you understand what becomes of us. |
| oceans: a very short introduction: Saving the Oceans Through Law James Harrison, 2017 The oceans cover more than seventy per cent of the surface of the planet and they provide many vital ecosystem services. However, the health of the world's oceans has been deteriorating over the past decades and the protection of the marine environment has emerged as one of the most pressing legal and political challenges for the international community. An effective solution depends upon the cooperation of all states towards achieving agreed objectives. This book provides a critical assessment of the role that international law plays in this process, by explaining and evaluating the various legal instruments that have been negotiated in this area, as well as key trends in global ocean governance. Starting with a detailed analysis of the United Nations Convention on the Law of the Sea, the book considers the main treaties and other legal texts that seeks to prevent, reduce, and control damage to the marine environment caused by navigation, seabed exploitation, fishing, dumping, and land-based activities, as well as emerging pressures such as ocean noise and climate change. The book demonstrates how international institutions have expanded their mandates to address a broader range of marine environmental issues, beyond basic problems of pollution control to include the conservation of marine biological diversity and an ecosystems approach to regulation. It also discusses the development of diverse regulatory tools to address anthropogenic impacts on the marine environment and the extent to which states have adopted a precautionary approach in different maritime sectors. Whilst many advances have been made in these matters, this book highlights the need for greater coordination between international institutions, as well as the desirability of developing stronger enforcement mechanisms for international environmental rules. |
| oceans: a very short introduction: The Oxford Handbook of the Law of the Sea Donald Rothwell, Alex G. Oude Elferink, Karen Nadine Scott, Tim Stephens (Law teacher), 2015 Recent maritime disputes, environmental disasters, and piracy have raised the profile of the law of the sea. This Oxford Handbook brings together high-level analysis of all of its key aspects, examining the role of particular regions in the development of the law of the sea, management of the oceans' resources, and critical contemporary debates. |
| oceans: a very short introduction: Tides and the Ocean William Thomson, 2018-05-15 Surfers, sailors, and anyone who loves the ocean will enjoy this visual exploration of the world's seas along its shores, including rip tides, swells, waves, and tsunamis. Tide is the vertical motion of water, something so subtle it is impossible to see with the naked eye. Inspired by his travels around the world's coastline in a camper van with his young family, William Thomson captures the cycles of the sea's movement, and intersperses his adventures surfing the waves and charting the tides. Throughout Tides and the Ocean are his graphic renderings of unusual tidal maps, as well as other forms of water movement, including rip, rapids, swell, stream, tide, wave, whirlpool, and tsunami. Tides and the Ocean explains how the tides surge when the moon and sun align with the earth; how ocean streams alternate direction every six hours (which is invaluable information for kayakers, paddle boarders, and fishermen); why skyscraper-sized tsunamis occur frequently in an Alaskan Bay; and the most deadly beach orientation for rip currents. Also emphasized throughout is the importance of keeping the world's oceans healthy and full of life. Published in time for beach travel, this large-format hardcover is ideal for anyone who knows and loves the sea, and who wants to understand, discover, surf, or sail it better. |
| oceans: a very short introduction: Atmosphere, Ocean and Climate Dynamics John Marshall, R. Alan Plumb, 1978-11-16 For advanced undergraduate and beginning graduate students in atmospheric, oceanic, and climate science, Atmosphere, Ocean and Climate Dynamics is an introductory textbook on the circulations of the atmosphere and ocean and their interaction, with an emphasis on global scales. It will give students a good grasp of what the atmosphere and oceans look like on the large-scale and why they look that way. The role of the oceans in climate and paleoclimate is also discussed. The combination of observations, theory and accompanying illustrative laboratory experiments sets this text apart by making it accessible to students with no prior training in meteorology or oceanography.* Written at a mathematical level that is appealing for undergraduates andbeginning graduate students* Provides a useful educational tool through a combination of observations andlaboratory demonstrations which can be viewed over the web* Contains instructions on how to reproduce the simple but informativelaboratory experiments* Includes copious problems (with sample answers) to help students learn thematerial. |
| oceans: a very short introduction: The Oceans Eelco J. Rohling, 2020-07-14 The 4.4-billion-year history of the oceans and their role in Earth's climate system It has often been said that we know more about the moon than we do about our own oceans. In fact, we know a great deal more about the oceans than many people realize. Scientists know that our actions today are shaping the oceans and climate of tomorrow—and that if we continue to act recklessly, the consequences will be dire. Eelco Rohling traces the 4.4-billion-year history of Earth's oceans while also shedding light on the critical role they play in our planet's climate system. This timely and accessible book explores the close interrelationships of the oceans, climate, solid Earth processes, and life, using the context of Earth and ocean history to provide perspective on humankind's impacts on the health and habitability of our planet. |
| oceans: a very short introduction: Alien Oceans Kevin Hand, 2020-04-07 Inside the epic quest to find life on the water-rich moons at the outer reaches of the solar system Where is the best place to find life beyond Earth? We often look to Mars as the most promising site in our solar system, but recent scientific missions have revealed that some of the most habitable real estate may actually lie farther away. Beneath the frozen crusts of several of the small, ice-covered moons of Jupiter and Saturn lurk vast oceans that may have existed for as long as Earth, and together may contain more than fifty times its total volume of liquid water. Could there be organisms living in their depths? Alien Oceans reveals the science behind the thrilling quest to find out. Kevin Peter Hand is one of today's leading NASA scientists, and his pioneering research has taken him on expeditions around the world. In this captivating account of scientific discovery, he brings together insights from planetary science, biology, and the adventures of scientists like himself to explain how we know that oceans exist within moons of the outer solar system, like Europa, Titan, and Enceladus. He shows how the exploration of Earth's oceans is informing our understanding of the potential habitability of these icy moons, and draws lessons from what we have learned about the origins of life on our own planet to consider how life could arise on these distant worlds. Alien Oceans describes what lies ahead in our search for life in our solar system and beyond, setting the stage for the transformative discoveries that may await us. |
| oceans: a very short introduction: The History of Life: A Very Short Introduction Michael J. Benton, 2008-11-27 This Very Short Introduction presents a succinct and accessible guide to the key episodes in the story of life on earth - from the very origins of life four million years ago to the extraordinary diversity of species around the globe today. |
| oceans: a very short introduction: Oceanic Birds of the World Steve N. G. Howell, Kirk Zufelt, 2019-08-20 A state-of-the-art photographic field guide to the world's oceanic birds Oceanic birds are among the most remarkable but least known of all birds, living at sea, far from the sight of most people. They offer unusual identification challenges—many species look similar and it can be difficult to get good views of fast-flying birds from a moving boat. The first field guide to the world's oceanic birds in more than two decades, this exciting and authoritative book draws on decades of firsthand experience on the open seas. It features clear text filled with original insights and new information and more than 2,200 carefully chosen color images that bring the ocean and its remarkable winged inhabitants to life. Never before have oceanic birds been presented in such an accessible and comprehensive way. The introduction discusses the many recent developments in seabird taxonomy, which are incorporated into the species accounts, and these accounts are arranged into groups that aid field identification. Each group and species complex has an introductory overview of its identification challenges, illustrated with clear comparative photos. The text describes flight manner, plumage variation related to age and molt, seasonal occurrence patterns, migration routes, and many other features. The result is an indispensable guide for exploring birding's last great frontier. A comprehensive, authoritative, and accessible guide to oceanic birds Covers more than 270 species Includes more than 2,200 color photos with concise captions noting key features Features careful species comparisons, overviews of the latest taxonomy, tips on how to observe and ID birds at sea, and much more |
| oceans: a very short introduction: Paganism Owen Davies, 2011 From its origins to the present day, Owen Davies explores ideas about Paganism that have existed over the last 2 millennia. He takes a chronological look at changing attitudes towards its beliefs, its practices, and its relationship with the Church. |
| oceans: a very short introduction: Invasive Species Julie Lockwood, Dustin J. Welbourne, 2023-05-23 Today there is no place on Earth that does not harbour invasive exotic species. Invasive plants and animals can be found on every continent, including Antarctica, and within all waterbodies, including all oceans. In our increasingly connected world, with speedy commercial and recreational travel and the global movement of biological matter for food, invasive species are showing up at such a fast rate that there is no way to accurately count how many currently exist or how many are likely to emerge in the coming decades. Monitoring these species and controlling their spread is essential, as we increasingly understand the negative impacts they pose: their threat to our health; the toll they take on our commercial production; and the threat they pose to native ecosystems. This Very Short Introduction provides a clear definition of an invasive species, and considers the myriad ways they are moved around the globe, and the ecological, social, and economic impacts they often impose. Exploring the way Earth's biodiversity is being affected by global change, Julie Lockwood also discusses policy and management approaches to combating the ill-effects of invasive species, and how invasive species fit within the broader context of environmental change. 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. |
| oceans: a very short introduction: Sea-Level Rise for the Coasts of California, Oregon, and Washington National Research Council, Division on Earth and Life Studies, Ocean Studies Board, Board on Earth Sciences and Resources, Committee on Sea Level Rise in California, Oregon, and Washington, 2012-12-06 Tide gauges show that global sea level has risen about 7 inches during the 20th century, and recent satellite data show that the rate of sea-level rise is accelerating. As Earth warms, sea levels are rising mainly because ocean water expands as it warms; and water from melting glaciers and ice sheets is flowing into the ocean. Sea-level rise poses enormous risks to the valuable infrastructure, development, and wetlands that line much of the 1,600 mile shoreline of California, Oregon, and Washington. As those states seek to incorporate projections of sea-level rise into coastal planning, they asked the National Research Council to make independent projections of sea-level rise along their coasts for the years 2030, 2050, and 2100, taking into account regional factors that affect sea level. Sea-Level Rise for the Coasts of California, Oregon, and Washington: Past, Present, and Future explains that sea level along the U.S. west coast is affected by a number of factors. These include: climate patterns such as the El Niño, effects from the melting of modern and ancient ice sheets, and geologic processes, such as plate tectonics. Regional projections for California, Oregon, and Washington show a sharp distinction at Cape Mendocino in northern California. South of that point, sea-level rise is expected to be very close to global projections. However, projections are lower north of Cape Mendocino because the land is being pushed upward as the ocean plate moves under the continental plate along the Cascadia Subduction Zone. However, an earthquake magnitude 8 or larger, which occurs in the region every few hundred to 1,000 years, would cause the land to drop and sea level to suddenly rise. |
| oceans: a very short introduction: Ocean Acidification National Research Council, Division on Earth and Life Studies, Ocean Studies Board, Committee on the Development of an Integrated Science Strategy for Ocean Acidification Monitoring, 2010-09-14 The ocean has absorbed a significant portion of all human-made carbon dioxide emissions. This benefits human society by moderating the rate of climate change, but also causes unprecedented changes to ocean chemistry. Carbon dioxide taken up by the ocean decreases the pH of the water and leads to a suite of chemical changes collectively known as ocean acidification. The long term consequences of ocean acidification are not known, but are expected to result in changes to many ecosystems and the services they provide to society. Ocean Acidification: A National Strategy to Meet the Challenges of a Changing Ocean reviews the current state of knowledge, explores gaps in understanding, and identifies several key findings. Like climate change, ocean acidification is a growing global problem that will intensify with continued CO2 emissions and has the potential to change marine ecosystems and affect benefits to society. The federal government has taken positive initial steps by developing a national ocean acidification program, but more information is needed to fully understand and address the threat that ocean acidification may pose to marine ecosystems and the services they provide. In addition, a global observation network of chemical and biological sensors is needed to monitor changes in ocean conditions attributable to acidification. |
| oceans: a very short introduction: Environmental Ethics: A Very Short Introduction Robin Attfield, 2018-12-06 Environmental ethics is a relatively new branch of philosophy, which studies the values and principles involved in combatting environmental problems such as pollution, loss of species and habitats, and climate change. As our environment faces evermore threats from human activities these core issues are becoming increasingly important. In this Very Short Introduction Robin Attfield traces the origins of environmental ethics as a discipline, and considers how it defends the independent value of living creatures, and the need to make decisions informed by the needs and interests of future generations. Exploring the diverse approaches to ethical decisions and judgements, he highlights the importance of making processes of production and consumption sustainable and of addressing human population levels, together with policies for preserving species, sub-species, and their habitats. Along the way Attfield discusses different movements such as Deep Ecology, Social Ecology, the Environmental Justice movement and the Green movement, and also considers the attitudes to the environment of the world's religions, including the approach from the major religions and the contributions of the indigenous religions of Asia, Africa and North America. Analysing the current threat of climate change, and proposals for climate engineering, he demonstrates how responsibility for the environment ultimately lies with us all, from states and corporations to individuals, and emphasises how concerted action is required to manage our environment ethically and sustainably. 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. |
| oceans: a very short introduction: The Arctic Klaus Dodds, Jamie Woodward, 2021-11-25 Very Short Introductions: Brilliant, Sharp, Inspiring The Arctic is demanding global attention. It is warming, melting, and thawing in a manner that threatens fundamental state-change. For communities that call the Arctic 'home' this is unwelcome. A warming Arctic brings with it the spectre of costly disruption and interference in indigenous lives and communal welfare. For others, the disappearance of sea ice makes the Arctic appear more accessible and less remote. This also brings with it dangers such as the prospect of a new era of great power rivalries involving China, Russia, and the United States. Submarine and long-range bomber patrolling are now commonplace. New terms such as 'global Arctic' are being used to capture the dynamic of change while others muse about the 'return of a Cold War'. The reality is inevitably more complex. The physical geography of the Arctic is highly varied and variable. Environmental change brings opportunities for indigenous and non-indigenous life-forms to survive and even thrive. The Arctic's four million people are not helpless pawns in a game of global geopolitics. The Arctic is not only a resource hotspot but also a place where sustainable energy systems are being introduced. A warming Arctic with less ice and permafrost is not unique in the longer history of the Earth either. The Arctic is a complex space. In this Very Short Introduction, Klaus Dodds and Jamie Woodward consider the major dimensions of the region and the linkages beyond - from the geopolitical to the environmental. They examine the causes, drivers, and effects of cultural, physical, political, and economic change, and ponder the future of the Arctic. As they show, it is a future which will affect us all. 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. |
| oceans: a very short introduction: Five Oceans in a Teaspoon Dennis J. Bernstein, 2019-09-15 Five Oceans in a Teaspoon is a memoir in short visual poems, written by poet/investigative journalist Dennis J Bernstein, typographic visualizations by designer/author Warren Lehrer. As with his journalism, Bernstein's poems reflect the struggle of everyday people trying to survive in the face of adversity. Divided into eight chapters, it spans a lifetime, lifetimes: growing up confused by dyslexia and a parent's alcoholism; graced by pogo sticks, boxing lessons and a mother's compassion; becoming a frontline witness to war and its aftermaths, to prison, street life, poverty, love and loss, to open heart surgery, caring for aging parents and visitations from them after they're gone. Lehrer's typographic compositions give form to the interior, emotional and metaphorical underpinnings of the poems. Together, the writing and visuals create a new whole that engages the reader to become an active participant in the navigation, discovery, and experience of each poem. |
| oceans: a very short introduction: Encyclopedia of the Oceans Dorrik A. V. Stow, 2004 This major new volume is an indispensable resource, and an endlessly fascination work of reference. Clearly structured in two parts, dealing with the physical nature of oceans and the evolution and distribution of marine life, it covers all the major fields of oceanographic research. Itsaccessible treatment offers a wealth of up-to-date information on topics ranging from oceanic ridge formation and hydrothermal vents, to the rhythm and patterns of tides, currents, and weather systems, to the astonishing diversity and complex interactions of marine communities.The impact of humankind on the oceans is also discussed: with increasing demand for resources, the world's oceans are set to become the 'final frontier' for intensive scientific research. However, the seas are not inexhaustible, nor are they infinitely resilient; disasters such as Exxon Valdez havebrought home the enormous costs of marine pollution. The Encyclopedia of the Oceans considers the options and looks at the sustainable use of resources and conservation of marine life. The stunning photographs - many of them illustrating exciting new underwater research projects, brilliant explanatory artworks and maps, together with the clear, authoritative text combine to make this an invaluable work of reference on a unique, vital, but little understood component of ourplanet. |
| oceans: a very short introduction: Very Short Introductions for Curious Young Minds: the Invisible World of Germs Isabel Thomas, 2022 This title is part of the important new series from Oxford which provides accessible introductions to the ideas, facts, and vocabulary behind an absorbing range of subjects. Meticulously researched and authoritative but written in simple language by experts in their fields, curious youngreaders will quickly get to grips with the basic principles and terminology of each subject.The Invisible World of Germs introduces, in a clear and interesting way, early theories about diseases and how they spread, what bacteria, fungi, protists and viruses are and how they behave. It also explores our natural defences and how we protect ourselves from the ever-changing threat ofinfection. The engaging design highlights the Heroes of the subject from early beginnings to modern day and explains tricky terminology in 'Speak like a Scientist' features. Comic strips and illustrations, amazing photographs, and a timeline, glossary and index, all make this handy-sized book theperfect way to learn.If you love this title, why not collect them all? The Invisible World of Germs is part of a collectible set which will build into a diverse range of subjects. |
| oceans: a very short introduction: Descriptive Physical Oceanography George L. Pickard, 1975 |
| oceans: a very short introduction: Marine Biology: A Very Short Introduction Philip V. Mladenov, 2013-09-26 The marine environment -- Marine biological processes -- Life in the coastal ocean -- Polar marine biology -- Marine life in the tropics -- Deep-ocean biology -- Intertidal life -- Food from the oceans. |
| oceans: a very short introduction: Geology: A Very Short Introduction Jan Zalasiewicz, 2018-06-28 Ranging across the 4.6 billion year history of the planet, geology is the subject that encompasses almost all that we see around us, in one way or another, and also much that we cannot see, beneath our feet, and on other planets. The fruits of geology provide most of the materials that give us shelter, and most of the energy that drives our modern lives. Within the study of geology lie some of the clues to the extraordinary impact our species is going to play out on the planet, in centuries and millennia to come. In this Very Short Introduction Jan Zalasiewicz gives a brief introduction to the fascinating field of geology. Describing how the science developed from its early beginnings, he looks at some of the key discoveries that have transformed it, before delving into its various subfields, such as sedimentology, tectonics, and stratigraphy. Analysing the geological foundations of the Earth, Zalasiewicz explains the interlocking studies of tectonics, geophysics, and igneous and metamorphic petrology and geochemistry; and describes how rocks are dated by radiometric dating. Considering the role and importance of geology in the finding and exploitation of resources (including fracking), he also discusses its place in environmental issues, such as foundations for urban structures and sites for landfill, and in tackling issues associated with climate change. Zalasiewicz concludes by discussing the exciting future and frontiers of the field, such as the exploration of the geology of Mars. 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. |
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How Many Oceans Are There In The World? - WorldAtlas
Feb 19, 2025 · How Many Oceans Are There In The World? For much of recorded history, Earth was said to have four named oceans: the Atlantic , Pacific , Indian , and Arctic . However, …
Ocean - Wikipedia
The ocean is conventionally divided into large bodies of water, which are also referred to as oceans (the Pacific, Atlantic, Indian, Antarctic/Southern, and Arctic Ocean), [9] [10] [11] and …
What are the 5 Oceans of the World? - Earth How
Today, we list the top 5 largest oceans in the world and the evolution of 5 oceans on Earth. 1. Pacific Ocean. The Pacific Ocean is the largest ocean covering more than 30% of the Earth. …
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Oceans are large bodies of salt water. They cover about two thirds of the Earth. There are five oceans: The Pacific Ocean; The Atlantic Ocean; The Indian Ocean; The Arctic Ocean; The …
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Geographers, for many years, divided the world ocean into four parts: the Atlantic, Pacific, Indian, and Arctic Oceans. In addition to these oceans, they also described many other smaller bodies …
