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A multidisciplinary 2001 overview of life in, on and under snow for anyone interested in the cryosphere.
Report provides the total population for each of the nation's 3,141 counties from 1990 back to the first census in which the county appeared.
Technical yet accessible, The Avalanche Handbook, 3rd Edition, covers the formation, character, effects, and control of avalanches; rescue techniques; and research on understanding and surviving avalanches. Illustrated with nearly 200 updated illustrations, photos and examples, the revised edition offers exhaustive information on contributing weather and climate factors, snowpack analysis, the newest transceiver search techniques, and preventative and protective measures, including avalanche zoning and control. It contains new information on the unique characteristics of alpine snow, snow slab instability, terrain variables, skier triggering of avalanches, and the nature of avalanche motion. Plus brand-new chapters on the elements of backcountry avalanche forecasting and the decision-making process.
In twenty short books, Penguin brings you the classics of the environmental movement. In this lyrical meditation on America's wildlands, Aldo Leopold considers the different ways humans shape the natural landscape, and describes for the first time the far-reaching phenomenon now known as 'trophic cascades'. Over the past 75 years, a new canon has emerged. As life on Earth has become irrevocably altered by humans, visionary thinkers around the world have raised their voices to defend the planet, and affirm our place at the heart of its restoration. Their words have endured through the decades, becoming the classics of a movement. Together, these books show the richness of environmental thought, and point the way to a fairer, saner, greener world.