Scott K. Johnson reviews On Gaia: A Critical Investigation of the Relationship Between Life and Earth by Toby Tyrrell:
Spiritual groups that hope to attract your interest may exhort you to “Be a part of something bigger than yourself!” But James Lovelock would tell you that you can already check that off your to-do list.
In the early 1970s, Lovelock—with the help of Lynn Margulis—developed the Gaia Hypothesis, which views the Earth and its ecosystems as resembling a sort of superorganism. Lovelock was working for NASA at the time, developing instruments that would aid the Viking landers in looking for signs of life on Mars, so he was thinking about how life interacts with its environment on a planetary scale. And Margulis was famed for her ideas about symbiosis.
This intellectual background led to the idea that organisms are not just passive inhabitants riding a big rock that determined whether they lived or died. Organisms were active participants in the molding of their environment, tweaking and improving conditions as part of a massive, self-regulating system.
In On Gaia: A Critical Investigation of the Relationship Between Life and Earth, University of Southampton Professor Toby Tyrrell sets out to comprehensively put the Gaia Hypothesis to the test, using everything we’ve learned about life and its history on our planet.