Protecting Visibility in National Parks and Wilderness Areas PDF Download
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Author: National Research Council
Publisher: National Academies Press
ISBN: 0309048443
Category : Science
Languages : en
Pages : 465
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Book Description
Scenic vistas in most U.S. parklands are diminished by haze that reduces contrast, washes out colors, and renders distant landscape features indistinct or invisible. Protecting Visibility in National Parks and Wilderness Areas describes the current understanding of the nature and extent of haze in various regions of the United States. The book addresses the scientific and legal framework of efforts to protect and improve visibility, as well as methods for assessing the relative importance of anthropogenic emission sources that contribute to haze in national parks and for considering various alternative source control measures. The volume provides guidance on how to make progress toward the national goal of correcting and preventing visibility impairment due to human activities affecting large national parks and wilderness areas.
Author: National Research Council
Publisher: National Academies Press
ISBN: 0309048443
Category : Science
Languages : en
Pages : 465
Get Book Here
Book Description
Scenic vistas in most U.S. parklands are diminished by haze that reduces contrast, washes out colors, and renders distant landscape features indistinct or invisible. Protecting Visibility in National Parks and Wilderness Areas describes the current understanding of the nature and extent of haze in various regions of the United States. The book addresses the scientific and legal framework of efforts to protect and improve visibility, as well as methods for assessing the relative importance of anthropogenic emission sources that contribute to haze in national parks and for considering various alternative source control measures. The volume provides guidance on how to make progress toward the national goal of correcting and preventing visibility impairment due to human activities affecting large national parks and wilderness areas.
Author: United States. Congress. House. Committee on Government Operations. Environment, Energy, and Natural Resources Subcommittee
Publisher:
ISBN:
Category : Nature
Languages : en
Pages : 216
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Book Description
Distributed to some depository libraries in microfiche.
Author: United States. Congress. House. Committee on Government Operations. Environment, Energy, and Natural Resources Subcommittee
Publisher:
ISBN:
Category : Air
Languages : en
Pages : 216
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Book Description
Author:
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Category : Delegated legislation
Languages : en
Pages : 426
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Book Description
Author: United States. Congress. House. Committee on Science. Subcommittee on Energy and Environment
Publisher:
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Category : Air quality
Languages : en
Pages : 1488
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Book Description
Author: William L. Halvorson
Publisher: University of Arizona Press
ISBN: 0816552401
Category : Science
Languages : en
Pages : 377
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Book Description
Our national parks are more than mere recreational destinations. They are repositories of the nation's biological diversity and contain some of the last ecosystem remnants needed as standards to set reasonable goals for sustainable development throughout the land. Nevertheless, public pressure for recreation has largely precluded adequate research and resource monitoring in national parks, and ignorance of ecosystem structure and function in parks has led to costly mistakes--such as predator control and fire suppression--that continue to threaten parks today. This volume demonstrates the value of ecological knowledge in protecting parks and shows how modest investments in knowledge of park ecosystems can pay handsome dividends. Science and Ecosystem Management in the National Parks presents twelve case studies of long-term research conducted in and around national parks that address major natural resource issues. These cases demonstrate how the use of longer time scales strongly influence our understanding of ecosystems and how interpretations of short-term patterns in nature often change when viewed in the context of long-term data sets. Most importantly, they show conclusively that scientific research significantly reduces uncertainty and improves resource management decisions. Chosen by scientists and senior park managers, the cases offer a broad range of topics, including: air quality at Grand Canyon; interaction between moose and wolf populations on Isle Royale; control of exotic species in Hawaiian parks; simulation of natural fire in the parks of the Sierra Nevada; and the impact of urban expansion on Saguaro National Monument. Because national parks are increasingly beset with conflicting views of their management, the need for knowledge of park ecosystems becomes even more critical--not only for the parks themselves, but for what they can tell us about survival in the rest of our world. This book demonstrates to policymakers and managers that decisions based on knowledge of ecosystems are more enduring and cost effective than decisions derived from uninformed consensus. It also provides scientists with models for designing research to meet threats to our most precious natural resources. "If we can learn to save the parks," observe Halvorson and Davis, "perhaps we can learn to save the world."
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 458
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Book Description
Author: United States. Congress. Senate. Committee on Environment and Public Works. Subcommittee on Clean Air, Wetlands, Private Property, and Nuclear Safety
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 144
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Book Description
Author:
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ISBN:
Category : Air
Languages : en
Pages : 240
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Book Description
Author:
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ISBN:
Category : Environmental policy
Languages : en
Pages : 282
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Book Description
