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How Many Oceans Are There?

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Release : 2015-02-20
Genre : Science
Kind : eBook
Book Rating : /5 ( reviews)

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Book Synopsis How Many Oceans Are There? by : Jonah Young

Download or read book How Many Oceans Are There? written by Jonah Young. This book was released on 2015-02-20. Available in PDF, EPUB and Kindle. Book excerpt: There are five oceans in the world, the Arctic, Atlantic, Indian, Pacific and Southern Oceans. Look into the details of each ocean.

Marine Biology: a Very Short Introduction

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Release : 2020-02-27
Genre : Science
Kind : eBook
Book Rating : 71X/5 ( reviews)

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Book Synopsis Marine Biology: a Very Short Introduction by : Philip Mladenov

Download or read book Marine Biology: a Very Short Introduction written by Philip Mladenov. This book was released on 2020-02-27. Available in PDF, EPUB and Kindle. Book excerpt: The oceans are our planet's most distinctive and imposing natural habitat. They cover 71 percent 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.

Alien Oceans

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Release : 2021-09-21
Genre : Nature
Kind : eBook
Book Rating : 284/5 ( reviews)

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Book Synopsis Alien Oceans by : Kevin Hand

Download or read book Alien Oceans written by Kevin Hand. This book was released on 2021-09-21. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Sea Power

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Release : 2018-06-05
Genre : Political Science
Kind : eBook
Book Rating : 611/5 ( reviews)

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Book Synopsis Sea Power by : Admiral James Stavridis, USN

Download or read book Sea Power written by Admiral James Stavridis, USN. This book was released on 2018-06-05. Available in PDF, EPUB and Kindle. Book excerpt: From one of the most admired admirals of his generation—and the only admiral to serve as Supreme Allied Commander at NATO—comes a remarkable voyage through all of the world’s most important bodies of water, providing the story of naval power as a driver of human history and a crucial element in our current geopolitical path. From the time of the Greeks and the Persians clashing in the Mediterranean, sea power has determined world power. To an extent that is often underappreciated, it still does. No one understands this better than Admiral Jim Stavridis. In Sea Power, Admiral Stavridis takes us with him on a tour of the world’s oceans from the admiral’s chair, showing us how the geography of the oceans has shaped the destiny of nations, and how naval power has in a real sense made the world we live in today, and will shape the world we live in tomorrow. Not least, Sea Power is marvelous naval history, giving us fresh insight into great naval engagements from the battles of Salamis and Lepanto through to Trafalgar, the Battle of the Atlantic, and submarine conflicts of the Cold War. It is also a keen-eyed reckoning with the likely sites of our next major naval conflicts, particularly the Arctic Ocean, Eastern Mediterranean, and the South China Sea. Finally, Sea Power steps back to take a holistic view of the plagues to our oceans that are best seen that way, from piracy to pollution. When most of us look at a globe, we focus on the shape of the of the seven continents. Admiral Stavridis sees the shapes of the seven seas. After reading Sea Power, you will too. Not since Alfred Thayer Mahan’s legendary The Influence of Sea Power upon History have we had such a powerful reckoning with this vital subject.

Ocean! Waves for All

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Release : 2020-05-05
Genre : Juvenile Nonfiction
Kind : eBook
Book Rating : 862/5 ( reviews)

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Book Synopsis Ocean! Waves for All by : Stacy McAnulty

Download or read book Ocean! Waves for All written by Stacy McAnulty. This book was released on 2020-05-05. Available in PDF, EPUB and Kindle. Book excerpt: From writer Stacy McAnulty and illustrator David Litchfield, Ocean! Waves for All is a light-hearted nonfiction picture book about the formation and history of the ocean, told from the perspective of the ocean itself. Dude. Ocean is incredible. Atlantic, Pacific, Artic, Indian, Southern—it's all excellent Ocean! Not part of any nation, his waves are for all. And under those waves, man, he holds so many secrets. With characteristic humor and charm, Stacy McAnulty channels the voice of Ocean in this next "autobiography" in the Our Universe series. Rich with kid-friendly facts and beautifully brought to life by David Litchfield, this is an equally charming and irresistible companion to Earth! My First 4.54 Billion Years; Sun! One in a Billion; and Moon! Earth's Best Friend.

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