NEW EDITION OF THE LEADING RESOURCE ON THE ARCTIC AND SOUTHERN OCEANS WITH CONTRIBUTIONS FROM THE WORLD’S EXPERTS ON SEA ICE _Sea Ice_ delivers insights into the very latest understanding of sea ice dynamics, how we measure (and model) its extent, the ecosystems that depend on sea ice, and the effect of climate change on its distribution. The book also discusses how sea ice influences the oceanography of underlying waters and the influence that sea ice has on the world’s climate. This newly revised and updated Fourth Edition looks at ice-based food webs and the impact on global geopolitics as well as changes in human activity in the Arctic. Written by a team of more than 80 of the world’s leading experts from 13 countries, _Sea Ice_ includes information on: * Sea ice thickness distribution and snow and surface processes on sea ice * The short-term and long-term dynamics of Arctic versus Antarctic Sea ice * Current methods of satellite remote sensing of sea ice * The ecology of sea ice, from microbes to mammals to marine birds * The cycling of contaminants across the ocean-sea ice-atmosphere interface In its new edition, _Sea Ice_ remains the leading multidisciplinary resource on the subject for all policy makers, researchers, and students with an interest in the polar regions and their role in the world’s oceanic systems.