Ice Rivers

A passionate eyewitness account of the mysteries and looming demise of glaciers—and what their fate means for our shared future The ice sheets and glaciers that cover one-tenth of Earth's land surface are in grave peril. High in the Alps, Andes, and Himalaya, once-indomitable glaciers are retreating, even dying. Meanwhile, in Antarctica, thinning glaciers may be unlocking vast quantities of methane stored for millions of years beneath the ice. In Ice Rivers, renowned glaciologist Jemma Wadham offers a searing personal account of glaciers and the rapidly unfolding crisis that they—and we—face. Taking readers on a personal journey from Europe and Asia to Antarctica and South America, Wadham introduces majestic glaciers around the globe as individuals—even friends—each with their own unique character and place in their community. She challenges their first appearance as silent, passive, and lifeless, and reveals that glaciers are, in fact, as alive as a forest or soil, teeming with microbial life and deeply connected to almost everything we know. They influence crucial systems on which people depend, from lucrative fisheries to fertile croplands, and represent some of the most sensitive and dynamic parts of our world. Their fate is inescapably entwined with our own, and unless we act to abate the greenhouse warming of our planet the potential consequences are almost unfathomable. A riveting blend of cutting-edge research and tales of encounters with polar bears and survival under the midnight sun, Ice Rivers is an unforgettable portrait of—and love letter to—our vanishing icy wildernesses.

This book exposes practitioners and students to the theory and application of river and lake ice processes to gain a better understanding of these processes for modelling and forecasting. It focuses on the following processes of the surface water ice: freeze-up, ice cover thickening, ice cover breakup and ice jamming. The reader will receive a fundamental understanding of the physical processes of each component and how they are applied in monitoring and modelling ice covers during the winter season and forecasting ice floods. Exercises accompany each component to reinforce the theoretical principles learned. These exercises will also expose the reader to different tools to process data, such a space-borne remote sensing imagery for ice cover classification. A thread supporting numerical modelling of river ice and lake ice processes runs through the book.

From bestselling author James Raffan comes an enlightening and original story about a polar bear’s precarious existence in the changing Arctic, reminiscent of John Vaillant’s The Golden Spruce. Nanurjuk, “the bear-spirited one,” is hunting for seals on Hudson Bay, where ice never lasts more than one season. For her and her young, everything is in flux. From the top of the world, Hudson Bay looks like an enormous paw print on the torso of the continent, and through a vast network of lakes and rivers, this bay connects to oceans across the globe. Here, at the heart of everything, walks Nanurjuk, or Nanu, one polar bear among the six thousand that traverse the 1.23 million square kilometers of ice and snow covering the bay. For millennia, Nanu’s ancestors have roamed this great expanse, living, evolving, and surviving alongside human beings in one of the most challenging and unforgiving habitats on earth. But that world is changing. In the Arctic’s lands and waters, oil has been extracted—and spilled. As global temperatures have risen, the sea ice that Nanu and her young need to hunt seal and fish has melted, forcing them to wait on land where the delicate balance between them and their two-legged neighbors has now shifted. This is the icescape that author and geographer James Raffan invites us to inhabit in Ice Walker. In precise and provocative prose, he brings readers inside Nanu’s world as she treks uncertainly around the heart of Hudson Bay, searching for nourishment for the children that grow inside her. She stops at nothing to protect her cubs from the dangers she can see—other bears, wolves, whales, human beings—and those she cannot. By focusing his lens on this bear family, Raffan closes the gap between humans and bears, showing us how, like the water of the Hudson Bay, our existence—and our future—is tied to Nanu’s. He asks us to consider what might be done about this fragile world before it is gone for good. Masterful, vivid, and haunting, Ice Walker is an utterly unique piece of creative nonfiction and a deeply affecting call to action.

A New York Times Notable Book of 2020 Longlisted for the National Book Award Winner of the PEN/E.O. Wilson Literary Science Writing Award and the Minnesota Book Award for General Nonfiction A Finalist for the Stanford Dolman Travel Book of the Year Award Winner of the Peace Corps Worldwide Special Book Award A Best Book of the Year: NPR, The Wall Street Journal, Smithsonian, Minneapolis Star-Tribune, The Globe and Mail, The BirdBooker Report, Geographical, Open Letter Review Best Nature Book of the Year: The Times (London) "A terrifically exciting account of [Slaght's] time in the Russian Far East studying Blakiston’s fish owls, huge, shaggy-feathered, yellow-eyed, and elusive birds that hunt fish by wading in icy water . . . Even on the hottest summer days this book will transport you.” —Helen Macdonald, author of H is for Hawk, in Kirkus I saw my first Blakiston’s fish owl in the Russian province of Primorye, a coastal talon of land hooking south into the belly of Northeast Asia . . . No scientist had seen a Blakiston’s fish owl so far south in a hundred years . . . When he was just a fledgling birdwatcher, Jonathan C. Slaght had a chance encounter with one of the most mysterious birds on Earth. Bigger than any owl he knew, it looked like a small bear with decorative feathers. He snapped a quick photo and shared it with experts. Soon he was on a five-year journey, searching for this enormous, enigmatic creature in the lush, remote forests of eastern Russia. That first sighting set his calling as a scientist. Despite a wingspan of six feet and a height of over two feet, the Blakiston’s fish owl is highly elusive. They are easiest to find in winter, when their tracks mark the snowy banks of the rivers where they feed. They are also endangered. And so, as Slaght and his devoted team set out to locate the owls, they aim to craft a conservation plan that helps ensure the species’ survival. This quest sends them on all-night monitoring missions in freezing tents, mad dashes across thawing rivers, and free-climbs up rotting trees to check nests for precious eggs. They use cutting-edge tracking technology and improvise ingenious traps. And all along, they must keep watch against a run-in with a bear or an Amur tiger. At the heart of Slaght’s story are the fish owls themselves: cunning hunters, devoted parents, singers of eerie duets, and survivors in a harsh and shrinking habitat. Through this rare glimpse into the everyday life of a field scientist and conservationist, Owls of the Eastern Ice testifies to the determination and creativity essential to scientific advancement and serves as a powerful reminder of the beauty, strength, and vulnerability of the natural world.