A brief history of Earth Four billion years in eight chapters

Andrew H. Knoll

Book - 2021

"Drawing on his decades of field research and up-to-the-minute understanding of the latest science, renowned geologist Andrew H. Knoll delivers a rigorous yet accessible biography of Earth, charting our home planet's epic 4.6 billion-year story. Placing twenty first-century climate change in deep context, A Brief History of Earth is an indispensable look at where we've been and where we're going."--

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Subjects
Genres
Annals and chronicles
Creative nonfiction
Published
New York, NY : Custom House [2021]
Language
English
Main Author
Andrew H. Knoll (author)
Edition
First edition
Physical Description
260 pages : illustrations, maps, portraits, charts ; 20 cm
Bibliography
Includes bibliographical references and index.
ISBN
9780062853912
  • Prologue: An Invitation
  • 1. Chemical Earth
  • 2. Physical Earth
  • 3. Biological Earth
  • 4. Oxygen Earth
  • 5. Animal Earth
  • 6. Green Earth
  • 7. Catastrophic Earth
  • 8. Human Earth
  • Acknowledgments
  • Further Reading
  • Index
Review by Booklist Review

A Brief History of Earth is a sublime chronicle of our planet's formation and beginnings, the perhaps unlikely yet awe-inspiring interactions that created life, diverse and abundant, and mass extinctions and recoveries. Knoll, professor of Earth and Planetary Sciences at Harvard University, skillfully presents the extreme conditions, violence, and delicate fragility that mark the cycles and evolution of our home. Knoll begins with "Chemical Earth," a review of the early Earth of more than four billion years ago, and ends with "Human Earth," which covers the current period that many geologists refer to as the Anthropocene Epoch, a name denoting the significant and dangerous influence humans have on our planet's carbon cycle. Knoll's style is clear and articulate, and he includes numerous and informative images. Much more than assiduously detailing the history of Earth, however, this planetary history serves as a warning and a determined call to action. Only through understanding will we "recognize how profoundly human activities are altering a world four billion years in the making." And only through understanding will we improve the thus far astonishingly insufficient human response to climate change. "The world you inherited is not just yours," Knoll writes, "it is your responsibility."

From Booklist, Copyright (c) American Library Association. Used with permission.
Review by Kirkus Book Review

A geologist skillfully condenses the history of the Earth. A Harvard professor of natural history and Earth and planetary sciences, Knoll begins when the Earth coalesced from dust and rocks circling the sun. Animals more complex than bacteria do not appear until the halfway point of the book, but few readers will complain. Good evidence for the Earth's age did not appear until the 20th century, when measuring the decay of radioactive uranium revealed its age at 4.6 billion years. Rocks raining down generated enough heat to keep the Earth molten. By the time it cooled around 4 billion years ago, two substances we take for granted, water and oxygen, were missing. Water arrived from meteorites, which continue to fall, although less often than in previous millennia. Knoll engagingly recounts the theories of how life began along with the startling fact that evidence of microbial life appeared soon after the Earth cooled. It's possible that life is not a lucky accident but inevitable once certain conditions are present. In the absence of oxygen, primitive organisms lived off alternate sources of energy such as sulfur or iron, which existed in the oceans and hot springs. More than 1 billion years passed before cyanobacteria evolved to extract energy from sunlight and water. This process of photosynthesis produced oxygen, leading eventually to the "Great Oxygenation Event" that marginalized older life forms but jump-started evolution because respiration using oxygen yields far more energy. After another 3 billion years, more complex organisms appeared. Early animals date from 500 million to 600 million years ago. Fish appeared at around 450 million years ago and began walking on land 100 million years later. In later chapters, Knoll speeds up the narrative but maintains a focus on geology as he proceeds through dinosaurs, mammals, continent migration, and catastrophic mass extinctions. Of course, the author's study of humans dominates the closing section, which recounts hominid evolution and the dismal details of how we are making a mess of things. An expert primer on the history of everything. Copyright (c) Kirkus Reviews, used with permission.

Copyright (c) Kirkus Reviews, used with permission.