Ripples on the Cosmic Ocean: An Environmental History of Our Place in the Solar System

The untold story of how environmental change throughout the cosmos shaped five hundred years of human civilization.

Our solar system is a dynamic arena where asteroids careen off course and solar winds hurl charged particles across billions of miles of space. Yet we seldom consider how these events, so immense in scale, influence our fragile blue planet: Earth.

In Ripples on the Cosmic Ocean, Dagomar Degroot traces the surprising threads linking human endeavor to the rest of the solar system. He reveals how variability in planetary environments has shaped geopolitics, spurred scientific and cultural innovation, and encouraged new ideas about the emergence and fate of life. Martian dust storms altered the trajectory of the Cold War and inspired fantastical stories about alien civilizations. Comet impacts on Jupiter led to the first planetary defense strategy. And volcanic eruptions spewed sulfuric acid into Venus’s atmosphere, exposing the existential risks of climate change at home.

As we stand on the brink of a new era of space settlement, cosmic environments are becoming increasingly vulnerable to human activity. They may also hold the key to slowing the destruction of environments on Earth. Ripples on the Cosmic Ocean urges us to develop an interplanetary environmentalism across a vast mosaic of entangled worlds and to consider the profound connections that bind us to the cosmos and each other.

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Ripples on the Cosmic Ocean: An Environmental History of Our Place in the Solar System

The untold story of how environmental change throughout the cosmos shaped five hundred years of human civilization.

Our solar system is a dynamic arena where asteroids careen off course and solar winds hurl charged particles across billions of miles of space. Yet we seldom consider how these events, so immense in scale, influence our fragile blue planet: Earth.

In Ripples on the Cosmic Ocean, Dagomar Degroot traces the surprising threads linking human endeavor to the rest of the solar system. He reveals how variability in planetary environments has shaped geopolitics, spurred scientific and cultural innovation, and encouraged new ideas about the emergence and fate of life. Martian dust storms altered the trajectory of the Cold War and inspired fantastical stories about alien civilizations. Comet impacts on Jupiter led to the first planetary defense strategy. And volcanic eruptions spewed sulfuric acid into Venus’s atmosphere, exposing the existential risks of climate change at home.

As we stand on the brink of a new era of space settlement, cosmic environments are becoming increasingly vulnerable to human activity. They may also hold the key to slowing the destruction of environments on Earth. Ripples on the Cosmic Ocean urges us to develop an interplanetary environmentalism across a vast mosaic of entangled worlds and to consider the profound connections that bind us to the cosmos and each other.

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Ripples on the Cosmic Ocean: An Environmental History of Our Place in the Solar System

Ripples on the Cosmic Ocean: An Environmental History of Our Place in the Solar System

by Dagomar Degroot
Ripples on the Cosmic Ocean: An Environmental History of Our Place in the Solar System

Ripples on the Cosmic Ocean: An Environmental History of Our Place in the Solar System

by Dagomar Degroot

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Overview

The untold story of how environmental change throughout the cosmos shaped five hundred years of human civilization.

Our solar system is a dynamic arena where asteroids careen off course and solar winds hurl charged particles across billions of miles of space. Yet we seldom consider how these events, so immense in scale, influence our fragile blue planet: Earth.

In Ripples on the Cosmic Ocean, Dagomar Degroot traces the surprising threads linking human endeavor to the rest of the solar system. He reveals how variability in planetary environments has shaped geopolitics, spurred scientific and cultural innovation, and encouraged new ideas about the emergence and fate of life. Martian dust storms altered the trajectory of the Cold War and inspired fantastical stories about alien civilizations. Comet impacts on Jupiter led to the first planetary defense strategy. And volcanic eruptions spewed sulfuric acid into Venus’s atmosphere, exposing the existential risks of climate change at home.

As we stand on the brink of a new era of space settlement, cosmic environments are becoming increasingly vulnerable to human activity. They may also hold the key to slowing the destruction of environments on Earth. Ripples on the Cosmic Ocean urges us to develop an interplanetary environmentalism across a vast mosaic of entangled worlds and to consider the profound connections that bind us to the cosmos and each other.


Product Details

ISBN-13: 9780674301818
Publisher: Harvard University Press
Publication date: 10/28/2025
Sold by: Barnes & Noble
Format: eBook
Pages: 368
File size: 56 MB
Note: This product may take a few minutes to download.

About the Author

Dagomar Degroot is Associate Professor of Environmental History at Georgetown University. A contributor to the Washington Post, Nature, and Aeon, he is the author of The Frigid Golden Age: Climate Change, the Little Ice Age, and the Dutch Republic, 1560–1720, named one of the ten best history books of 2018 by the Financial Times.

Table of Contents

Cover

Title Page

Copyright

Dedication

Contents

Introduction: Our Cosmic Environment

Part I. Sun

1. Ice Ages Great and Small

2. Changing Stars, Changing Climates

3. Hidden Connections and Solar Science

4. Solar Storms and Existential Risk

Conclusion. Harnessing Our Star

Part II. Venus

5. Measuring the Universe

6. Venus as a Changing Earth

7. Worlds in Collision

8. Remaking Venus and Earth

Conclusion. Earth’s Once and Future Twin?

Part III. Moon

9. Muses of the Moon

10. The Promise and Peril of Lunar Life

11. Lunar Changes, Human Ambitions

12. Exploiting the Moon

Conclusion. Navigating the Lunar Anthropocene

Part IV. Mars

13. Unveiling a New World

14. Aliens on an Aged Earth

15. Meeting the Martians

16. Reshaping Planetary Climates

Conclusion. A Planet for Dreamers

Part V. Comets and Asteroids

17. Warnings in the Heavens

18. Encountering Near-Earth Objects

19. Giggles and Close Calls

20. Avoiding Jupiter’s Fate

Conclusion. Saving Earth, Fueling the Future?

Conclusion: A Shore on the Cosmic Ocean

Notes

Acknowledgments

Illustration Credits

Index

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