Fluvial Processes In Geomorphology By Luna B Leopold M Gordon Wolman And John P Miller

A pioneering study that encompasses both field and laboratory research, this text explores the landscapes of mountains, rivers, and seacoasts. Topics include weathering, climate, and erosion. New Foreword. 1964 edition.

Soil contamination . . . public lands . . . surface and groundwater pollution . . . coastal erosion . . . global warming. Have we reached the limits of this planet's ability to provide for us? If so, what can we do about it?These vital questions are addressed in The Earth Around Us, a unique collection of thirty-one essays by a diverse array of today's foremost scientist-writers. Sharing an ability to communicate science in a clear and engaging fashion, the contributors explore Earth's history and processes--especially in relation to today's environmental issues--and show how we, as members of a global community, can help maintain a livable planet. The narratives in this collection are organized into seven parts that describe: Earth's time and history and the place of people on it Views of nature and the ethics behind our conduct on Earth Resources for the twenty-first century, such as public lands, healthy forests and soils, clean ground and surface waters, and fluctuating coastlines Ill-informed local manipulations of landscapes across the United States Innovative solutions to environmental problems that arise from knowledge of the interactions between living things and the Earth's air, water, and soil Natural and human-induced global scale perturbations to the earth system Our responsibility to people and all other organisms that live on Earth. Never before has such a widely experienced group of prominent earth scientists been brought together to help readers understand how earth's environment works. Driven by the belief that earth science is, and should be, an integral part of everyday life, The Earth Around Us empowers all of us to play a more educated and active part in the search for a sustainable future for our planet and its inhabitants.

The study of landforms is becoming increasingly scientific. This book, first published in 1971, attempts to do justice to the work done in the last few decades, but strives to avoid a too uncritical acceptance of contemporary trends. The author first examines the fundamental characteristics and basic postulates of geomorphology. He then seeks to define the systematic stages through which the study of the landforms of a given area might proceed. Examples are drawn from a wide geographical range with emphasis on presenting examples of actual observations and measurements. The final section presents concise descriptions of simple and inexpensive methods of acquiring field data in landform study.

Today, climate-related processes and problems are referred to as Global Change by nearly everyone including scientists, politicians, and economists; citizens worldwide are anxious about the often ob served disorientation of our environment under the influence of man. Better information on the Earth's natural systems and their possible alterations is necessary. The topic itself is so wide that sound scien tific descriptions of it as a whole are rare. For the non-specialist infor mation from relevant fields is not easy to obtain; and often, the pro gnostic models presented are contradictory and even for specialists difficult to evaluate. Therefore, this book on Climate, Earth Processes and Earth History by Richard Huggett fills an important gap. It discusses the great, climate-related areas of the Earth's environment. The atmosphere, the hydrosphere, the sediments as products of weathering and geomorphic processes, the relief as landforms and soils, and the biosphere are thoroughly treated as the prominent sub systems which are greatly affected by climate. These subsystems not only control the visual and internal aspects of our landscapes, but they are themselves especially influenced by climatic changes which can be due to either changes in the natural system or anthropogenic changes. Thus, our landscapes will be subject to significant altera tions, if climatic variations exceed certain thresholds. The plan for the present book by Richard Huggett was originally discussed in regard to the Springer Series on Physical Environment.

Over the past decade, interpretations of Supreme Court (SC) rulings removed some critical waters from Fed. protection, and caused confusion about which waters and wetlands are protected under the CWA. As a result, important waters now lack clear protection under the law. This draft guidance clarifies how the EPA and the U.S. Army Corps of Engineers (ACE) will identify waters protected by the CWA and implement the SC¿s decisions concerning the extent of waters covered by the Act. It clarifies how the EPA and the ACE understand existing requirements of the CWA and provides guidance to agency field staff in making determinations about whether waters are protected by the CWA. This is a print on demand report.