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Oceans: A Very Short Introduction
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 35 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
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
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