Did the Earth once undergo a super ice age that froze the entire planet? In “Snowball Earth”, Gabrielle Walker takes us on a natural history expedition in search of evidence for an audacious theory—that the Earth experienced a climatic cataclysm 600 million years ago that froze the entire planet from the poles to the equator. Because the global snowball happened so long ago the ice has now long gone – but it left its traces in rocks around the world.
To see the evidence, Gabrielle travelled with geologists to remote deserts in Australia, Namibia, South Africa and Death Valley, USA. Part adventure story and part travel book, this is a tale of the ultimate human endeavour to understand our origins.
“This is science writing at its very best – cutting-edge, entertaining and downright enthralling.”
The Good Book Guide
“Walker does a superb job of relating both the scientific and the human side of the controversy. Her prose, like her story, is likely to engage both scientists and general readers equally…an important, provocative book that is a joy to read.”
Publishers Weekly