Table of Contents

Preface ix 1. Gaia, the Grand Idea 1 2. Good Citizens or Selfish Genes? 14 3. Life at the Edge: Lessons from Extremophiles 47 4. Temperature Paces Life 67 5. Icehouse Earth 88 6. Given Enough Time ... 113 7. Evolutionary Innovations and Environmental Change 130 8. A Stable or an Unstable World? 145 9. The Puzzle of Life's Long Persistence 171 10. Conclusions 199 Notes 219 Further Reading 273 References 277 Acknowledgments 299 Index 301

About the Author

Toby Tyrrell is professor of Earth system science at the National Oceanography Centre Southampton (University of Southampton).

Reviews

"Tyrrell's story is very informative and the reader will learn many fascinating stories of an organism's adaptation to an environment (rather than an environment conforming to an organism's need)."--Jonathan DuHamel, Arizona Daily Independent "A systematic, dispassionate, retrospective examination of Gaia... Tyrrell makes it very clear where he stands on Gaia, but the path of his journey is well reasoned--not a diatribe."--William Schlesinger, Nature Climate Change "It is timely to present a systematic review of how Gaia theory looks in the light of ... new information. Not too well is Toby Tyrrell's conclusion in this clear summary of the evidence to date... Persuasive."--Jon Turney, Times Higher Education "In On Gaia: A Critical Investigation of the Relationship between Life and Earth, Dr. Toby Tyrrell, for the first time, conducts a lengthy analysis of the scientific data for and against the Gaia Hypothesis. He concludes that the Gaia Hypothesis does not have enough scientific data to support it. He write eloquently, clearly, and succinctly describing how the Gaia Hypothesis lacks sufficient scientific evidence... A fair and reflective analysis."--Gabriel Thoumi, MongaBay.com