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Hardcover | $25.95 Trade | £20.95 | 224 pp. | 6 x 9 in | March 2018 | ISBN: 9780262037617
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The Synthetic Age

Outdesigning Evolution, Resurrecting Species, and Reengineering Our World


We have all heard that there are no longer any places left on Earth untouched by humans. The significance of this goes beyond statistics documenting melting glaciers and shrinking species counts. It signals a new geological epoch. In The Synthetic Age, Christopher Preston argues that what is most startling about this coming epoch is not only how much impact humans have had but, more important, how much deliberate shaping they will start to do. Emerging technologies promise to give us the power to take over some of Nature’s most basic operations. It is not just that we are exiting the Holocene and entering the Anthropocene; it is that we are leaving behind the time in which planetary change is just the unintended consequence of unbridled industrialism. A world designed by engineers and technicians means the birth of the planet’s first Synthetic Age.

Preston describes a range of technologies that will reconfigure Earth’s very metabolism: nanotechnologies that can restructure natural forms of matter; “molecular manufacturing” that offers unlimited repurposing; synthetic biology’s potential to build, not just read, a genome; “biological mini-machines” that can outdesign evolution; the relocation and resurrection of species; and climate engineering attempts to manage solar radiation by synthesizing a volcanic haze, cool surface temperatures by increasing the brightness of clouds, and remove carbon from the atmosphere with artificial trees that capture carbon from the breeze.

What does it mean when humans shift from being caretakers of the Earth to being shapers of it? And in whom should we trust to decide the contours of our synthetic future? These questions are too important to be left to the engineers.

About the Author

Christopher J. Preston is Professor of Philosophy and a Research Fellow in the Mansfield Center’s Program on Ethics and Public Affairs at the University of Montana.


The Synthetic Age is a powerful exposé of our ability to play nature and outperform evolution. This well-written and accessible book reminds us that humanity must accompany its ever-expanding technical prowess with a greater sense of responsibility of planetary proportions.”
Calestous Juma, Professor, Harvard Kennedy School; author of Innovation and Its Enemies: Why People Resist New Technologies
“Preston’s thorough and engaging exploration of the many ways that our species has learned to control the natural world, from manipulating molecules to reorganizing ecosystems to controlling the climate, provides a compelling argument in favor of renaming the present epoch the Synthetic Age. The book is a fascinating combination of history, science, and ethics that asks us to consider what we value most in nature and in our own humanity.”
Beth Shapiro, Professor, Physical and Biological Sciences, University of California, Santa Cruz; author of How to Clone a Mammoth
“Preston thoroughly examines the promises and the perils of the forthcoming Synthetic Age. But I fear—more than he does—the prospect of living an artificial life on a denatured planet. I concede that we face a Semi-Anthropocene, a Symbiotic Age, hoping to keep the natural basics on a wonderland Earth.”
Holmes Rolston, Colorado State University