Walker, Gabrielle, Antarctica: An Intimate Portrait of a Mysterious Continent. (Houghton Mifflin Harcourt, January 15, 2013) 

Antarctica is the most alien place on the planet, the only part of the earth where humans could never survive unaided. Gabrielle Walker weaves all the significant threads of life on the vast ice sheet into an intricate tapestry, illuminating what it really feels like to be there and why it draws so many different kinds of people. With her we witness cutting-edge science experiments, visit the South Pole, lodge with American, Italian, and French researchers, drive snowdozers, drill ice cores, and listen for the message Antarctica is sending us about our future in an age of global warming.

Chemistry Ph.D. and self-confessed “ice addict”, Gabrielle Walker has made more than a dozen trips to both poles. She has also climbed trees in the Amazon rainforest, swum with piranhas, been sneezed on by a humpback whale, hooked lava out of a live volcano, and flown in zero gravity. Gabrielle Walker lectures on her experience in Antarctica in a YouTube video here.

Walker, Gabrielle, Snowball Earth: The story of the great catastrophe that spawned life as we know it (Broadway Books, February 24, 2004)

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.