Now in its 4th Edition, this classic text covers the physical principles underlying the behavior of glaciers - terrestrial ice bodies originating as accumulations of snow - including mountain glaciers, small ice caps, ice sheets, and shelves. New material on climate change includes interactions between ice sheets and the ocean and atmosphere, paleoclimate reconstruction using ice cores, Quaternary climate history and the ice ages, and sea level rise. The book also explores topics of interest to geologists and geophysicists, including glacial connections to geomorphology, sedimentation, isostasy, and tectonics. It is completely updated and revised, with 30 per cent new material including climate change. It is accessible to students, and an essential guide for researchers. It is authored by preeminent glaciologists.