Browse Results

Showing 1,851 through 1,875 of 24,048 results

Mexico City's Water Supply: Improving the Outlook for Sustainability

by The Joint Academies Committee on the Mexico City Water Supply

This book addresses the technical, health, regulatory, and social aspects of ground water withdrawals, water use, and water quality in the metropolitan area of Mexico City, and makes recommendations to improve the balance of water supply, water demand, and water conservation. The study came about through a nongovernmental partnership between the U.S. National Academy of Sciences National Research Council and the Mexican Academies of Science and Engineering. The book will contain a Spanish-language translation of the complete English text.

Technical Bases for Yucca Mountain Standards

by Committee on Technical Bases for Yucca Mountain Standards

The United States currently has no place to dispose of the high-level radioactive waste resulting from the production of the nuclear weapons and the operation of nuclear electronic power plants. The only option under formal consideration at this time is to place the waste in an underground geologic repository at Yucca Mountain in Nevada. However, there is strong public debate about whether such a repository could protect humans from the radioactive waste that will be dangerous for many thousands of years. This book shows the extent to which our scientific knowledge can guide the federal government in developing a standard to protect the health of the public from wastes in such a repository at Yucca Mountain. The U.S. Environmental Protection Agency is required to use the recommendations presented in this book as it develops its standard.

Science and the Endangered Species Act

by Committee on Scientific Issues in the Endangered Species Act

The Endangered Species Act (ESA) is a far-reaching law that has sparked intense controversies over the use of public lands, the rights of property owners, and economic versus environmental benefits.In this volume a distinguished committee focuses on the science underlying the ESA and offers recommendations for making the act more effective.The committee provides an overview of what scientists know about extinction--and what this understanding means to implementation of the ESA. Habitat--its destruction, conservation, and fundamental importance to the ESA--is explored in detail.The book analyzes Concepts of species--how the term "species" arose and how it has been interpreted for purposes of the ESA. Conflicts between species when individual species are identified for protection, including several case studies. Assessment of extinction risk and decisions under the ESA--how these decisions can be made more effectively. The book concludes with a look beyond the Endangered Species Act and suggests additional means of biological conservation and ways to reduce conflicts. It will be useful to policymakers, regulators, scientists, natural-resource managers, industry and environmental organizations, and those interested in biological conservation.

Environmental Issues In Pacific Northwest Forest Management

by National Research Council

People are demanding more of the goods, services, and amenities provided by the forests of the Pacific Northwest, but the finiteness of the supply has become clear. This issue involves complex questions of biology, economics, social values, community life, and federal intervention.Forests of the Pacific Northwest explains that economic and aesthetic benefits can be sustained through new approaches to management, proposes general goals for forest management, and discusses strategies for achieving them. Recommendations address restoration of damaged areas, management for multiple uses, dispute resolution, and federal authority.The volume explores the market role of Pacific Northwest wood products and looks at the implications if other regions should be expected to make up for reduced timber harvests.The book also reviews the health of the forested ecosystems of the region, evaluating the effects of past forest use patterns and management practices. It discusses the biological importance, social significance, and management of old-growth as well as late-succession forests.This volume will be of interest to public officials, policymakers, the forest products industry, environmental advocates, researchers, and concerned residents.

A Plan for a Research Program on Aerosol Radiative Forcing and Climate Change

by National Research Council Staff

This book recommends the initiation of an "integrated" research program to study the role of aerosols in the predicted global climate change. Current understanding suggest that, even now, aerosols, primarily from anthropogenic sources, may be reducing the rate of warming caused by greenhouse gas emissions. In addition to specific research recommendations, this book forcefully argues for two kinds of research program integration: integration of the individual laboratory, field, and theoretical research activities and an integrated management structure that involves all of the concerned federal agencies.

Affordable Cleanup?: Opportunities for cost reduction in the decontamination and decommissioning of the nation's uranium enrichment facilities

by Committee on Decontamination Decommissioning of Uranium Enrichment Facilities

The Energy Policy Act of 1992 called on the National Academy of Sciences to conduct a study and provide recommendations for reducing the costs of decontaminating and decommissioning (D&D) the nation's uranium enrichment facilities located at Oak Ridge, Tennessee; Raducah, Kentucky; and Portsmouth, Ohio. This volume examines the existing plans and cost estimates for the D&D of these facilities, including such elements as technologies, planning and management, and identifies approaches that could reduce D&D costs. It also assesses options for disposition of the large quantities of depleted uranium hexafluoride that are stored at these sites.

Environmental Management Technology-Development Program at the Department of Energy 1995 Review

by Committee on Environmental Management Technologies

This book provides the National Academy of Sciences' 1995 review of the technology development program for the remediation of the Department of Energy's weapons complex facilities. It makes scientific, technical, and programmatic recommendations to strengthen technology development within DOE and ensure that it meet its goals of cost effectiveness, safety, and decreased risk. The recommendations address DOE's five focus areas: landfill stabilization; contaminant plume containment and remediation; facility transitioning, decommissioning, and final disposition; mixed waste characterization treatment; and high-level waste in tanks. The book also addresses technologies in areas that cross cut the above focus area programs, namely characterization monitoring and sensor technologies, efficient separations and processing, robotics, and waste disposal.

Review of Systemization of the Tooele Chemical Agent Disposal Facility

by Committee on Review Evaluation of the Army Chemical Stockpile Disposal Program

In 1993, at Tooele Army Depot, Utah, the Army completed construction of the Tooele Chemical Agent Disposal Facility (TOCDF), the first complete facility for destruction of lethal unitary chemical agents and munitions to be built in the continental United States. The TOCDF will employ the Army's baseline incineration system to destroy the depot's increment of the nation's aging unitary chemical stockpile. This book assesses Army changes and improvements to the TOCDF in response to recommendations contained in earlier reports of the committee. It assesses aspects of the facility's readiness for safe agent handling and destruction operations, its agent monitoring system, and its site specific risk assessment.

The Waste Isolation Pilot Plant: A Potential Solution for the Disposal of Transuranic Waste

by Committee on the Waste Isolation Pilot Plant

This volume discusses the readiness of the U.S. Department of Energy's (DOE) Waste Isolation Pilot Plant (WIPP) facility near Carlsbad, New Mexico, to serve as a geological repository for transuranic radioactive waste. WIPP is located in a Permian-age bedded salt deposit 658 meters below the surface. The committee has long reviewed DOE's readiness efforts, now aimed at demonstrating compliance with U.S. Environmental Protection Agency regulations. Site characterization studies and performance assessment modeling are among the topics considered in this volume.

Stemming the Tide: Controlling Introductions of Nonindigenous Species by Ships' Ballast Water

by Committee on Ships' Ballast Operations

The European zebra mussel in the Great Lakes, a toxic Japanese dinoflagellate transferred to Australia--such biologically and economically harmful stowaways have made it imperative to achieve better management of ballast water in ocean-going vessels.Stemming the Tide examines the introduction of nonindigenous species through ballast water discharge. Ballast is any solid or liquid that is taken aboard ship to achieve more controlled and safer operation. This expert volume Assesses current national and international approaches to the problem and makes recommendations for U.S. government agencies, the U.S. maritime industry, and the member states of the International Maritime Organization. Appraises technologies for controlling the transfer of organisms--biocides, filtration, heat treatment, and others --with a view toward developing the most promising methods for shipboard demonstration. Evaluates methods for monitoring the effectiveness of ballast water management in removing unwanted organisms. The book addresses the constraints inherent in ballast water management, notably shipboard ballast treatment and monitoring. Also, the committee outlines efforts to set an acceptable level of risk for species introduction using the techniques of risk analysis. Stemming the Tide will be important to all stakeholders in the issue of unwanted species introduction through ballast discharge: policymakers, port authorities, shippers, ship operators, suppliers to the maritime industry, marine biologists, marine engineers, and environmentalists.

Review of New York State Low-Level Radioactive Waste Siting Process

by Committee to Review New York State's Siting Methodology Selection for Low-Level Radioactive Waste Disposal

This book reviews the efforts of New York state to site a low-level radioactive waste disposal facility. It evaluates the nature, sources, and quality of the data, analyses, and procedures used by the New York State Siting Commission in its decisionmaking process, which identified five potential sites for low-level waste disposal. Finally, the committee offers a chapter highlighting the lessons in siting low-level radioactive waste facilities that can be learned from New York State's experience.

The Scientific Bases for Preservation of the Mariana Crow

by Committee on the Scientific Bases for the Preservation of the Mariana Crow

This book, while focusing on current preservation challenges posed by the Aga, or Mariana crow, also reflects the larger issues and challenges of biodiversity conservation in all oceanic island ecosystems. It evaluates causes for the continuing decline of the Aga, which exists on only the two southernmost islands in the Mariana archipelago, Guam and Rota, and reviews actions to halt or reverse the decrease.This book reminds us of the importance and challenge of preserving the unique environmental heritage of islands of the Mariana archipelago, the need for increased knowledge to restore and maintain native species and habitats, and the compelling and lasting value of extensive public education to stimulate environmentally informed public policy development.

An Evaluation of the U.S. Navy's Extremely Low Frequency Communications System Ecological Monitoring Program

by Committee to Evaluate the U.S. Navy's Extremely Low Frequency Communications System Ecological Monitoring Program

The U.S. Navy established an ecological monitoring program to determine whether electric and magnetic fields from extremely low frequency (ELF) communications systems influenced plant and animal populations near the transmitting facilities. Although some of the researchers believe that a few biological changes might have occurred, they concluded that the results do not indicate significant adverse ecological effects.This book evaluates the 11 ecological studies of the Navy's monitoring program and examines the adequacy of experimental design, the data collection and analysis, and the soundness of the conclusions. It also addresses whether the monitoring program was capable of detecting subtle effects due to ELF exposure and examines the biological changes observed by some program researchers, such as enhanced tree growth.

Environmentally Significant Consumption: Research Directions

by Committee on the Human Dimensions of Global Change

There has been much polemic about affluence, consumption, and the global environment. For some observers, "consumption" is at the root of global environmental threats: wealthy individuals and societies use far too much of the earth's resource base and should scale back their appetites to preserve the environment for future generations and allow a decent life for the rest of the world. Other observers see affluence as the way to escape environmental threats: economic development increases public pressure for environmental protection and makes capital available for environmentally benign technologies. The arguments are fed by conflicting beliefs, values, hopes, and fears--but surprisingly little scientific analysis.This book demonstrates that the relationship of consumption to the environment needs careful analysis by environmental and social scientists and conveys some of the excitement of treating the issue scientifically. It poses the key empirical questions: Which kinds of consumption are environmentally significant? Which actors are responsible for that consumption? What forces cause or explain environmentally significant consumption? How can it be changed? The book presents studies that open up important issues for empirical study: Are there any signs of saturation in the demand for travel in wealthy countries? What is the relationship between environmental consumption and human well-being? To what extent do people in developing countries emulate American consumption styles? The book also suggests broad strategies that scientists and research sponsors can use to better inform future debates about the environment, development, and consumption.

Evaluation of the U.S. Department of Energy's: Alternatives for the Removal and Disposition of Molten Salt Reactor Experiment Fluoride Salts

by Molten Salt Panel of the Committee on Remediation of Buried Tank Wastes

This book discusses the technical alternatives for cleanup of radioactive fluoride salts that were the fuel for the Molten Salt Reactor Experiment, a novel nuclear reactor design that was tested in the 1960s at the Oak Ridge National Laboratory in Tennessee. These fluoride salts pose an unusual cleanup challenge. The book discusses alternatives for processing and removing the salts based on present knowledge of fluoride salt chemistry and nuclear reactions of the radioactive constituents.

Barrier Technologies for Environmental Management: Summary of a Workshop

by Committee on Remediation of Buried Tank Wastes

To control the migration of radioactive and hazardous wastes currently contained underground, barriers made of natural materials and man-made substances are constructed atop, and possibly around, the contaminated area. Barrier Technologies for Environmental Management provides a brief summary of the key issues that arose during the Workshop on Barriers for Long-Term Isolation. Recurring themes from the session include the importance of quality control during installation, followed by periodic inspection, maintenance, and monitoring, and documentation of installation and performance data. The book includes papers by the workshop presenters.

Building An Effective Environmental Management Science Program: Final Assessment

by Committee on Building an Environmental Management Science Program

This book assesses the Department of Energy's Environmental Management Science Program--a new program that funds basic research related to environmental cleanup of the department's weapons complex. The authoring committee was established to advise the department on the structure and management of the program. The book provides recommendations on long-term challenges and opportunities for the program.

Building A Foundation For Sound Environmental Decisions

by Committee on Research Opportunities Priorities For Epa

Over the past decades, environmental problems have attracted enormous attention and public concern. Many actions have been taken by the U.S. Environmental Protection Agency and others to protect human health and ecosystems from particular threats. Despite some successes, many problems remain unsolved and new ones are emerging. Increasing population and related pressures, combined with a realization of the interconnectedness and complexity of environmental systems, present new challenges to policymakers and regulators.Scientific research has played, and will continue to play, an essential part in solving environmental problems. Decisions based on incorrect or incomplete understanding of environmental systems will not achieve the greatest reduction of risk at the lowest cost.This volume describes a framework for acquiring the knowledge needed both to solve current recognized problems and to be prepared for the kinds of problems likely to emerge in the future. Many case examples are included to illustrate why some environmental control strategies have succeeded where others have fallen short and how we can do better in the future.

Pacific Partnerships for Health: Charting a Course for the 21st Century

by Jill C. Feasley Robert S. Lawrence

The U.S.-Associated Pacific Basin consists of six island jurisdictions: American Samoa, the Commonwealth of the Northern Mariana Islands, Guam, the Federated States of Micronesia, Republic of the Marshall Islands, and the Republic of Palau. This book examines one aspect of the ties and U.S. involvement with this part of the world--its role in the region's health care delivery system. Although the health status of the islanders and the challenges faced by the health care systems naturally vary within and among the jurisdictions, in general, almost all health indicators for the islanders are worse than those of mainland Americans. The health systems in the area must deal with conditions normally seen in developing countries (e.g., malnutrition, tuberculosis, dengue fever, and cholera) and in developed countries alike (e.g., diabetes, heart disease, and cancer). In examining the strengths and weaknesses of the area's systems, the volume provides a regional health overview and assessments of health care in individual jurisdictions, evaluates the Pacific Basin Medical Officers Training Program, and lays out a strategic plan for future health services in the U.S.-Associated Pacific Basin.

Research Reactor Aluminum Spent Fuel: Treatment Options for Disposal

by Board on Radioactive Waste Management

The U.S. Department of Energy (DOE) is preparing an environmental impact statement (EIS) for management of aluminum spent fuel from foreign and domestic research reactors, much of which is highly enriched in uranium-235. This EIS will assess the need for additional treatment and storage facilities at the Savannah River Site to accommodate the receipt of this fuel, and it also will assess and select a treatment technology to prepare this fuel for interim storage and eventual shipment to a repository for disposal.This National Research Council book, which was prepared at the request of DOE's Savannah River Office, provides a technical assessment of the technologies, costs, and schedules developed by DOE for eight alternative treatment options and the baseline reprocessing option. It also provides comments on DOE's aluminum spent fuel disposal program, a program that is slated to last for about 40 years and cost in excess of $2 billion.

New Directions in Water Resources Planning for the U.S. Army Corps of Engineers

by National Research Council

The U.S. Army Corps of Engineers has long been one of the federal government's key agencies in planning the uses of the nation's waterways and water resources. Though responsible for a range of water-related programs, the Corps's two traditional programs have been flood damage reduction and navigation enhancement. The water resource needs of the nation, however, have for decades been shifting away from engineered control of watersheds toward restoration of ecosystem services and natural hydrologic variability. In response to these shifting needs, legislation was enacted in 1990 which initiated the Corps's involvement in ecological restoration, which is now on par with the Corps's traditional flood damage reduction and navigation roles.This book provides an analysis of the Corps's efforts in ecological restoration, and provides broader recommendations on how the corps might streamline their planning process. It also assesses the impacts of federal legislation on the Corps planning and projects, and provides recommendations on how relevant federal policies might be altered in order to improve Corps planning. Another important shift affecting the Corps has been federal cost-sharing arrangements (enacted in 1986), mandating greater financial participation in Corps water projects by local co-sponsors. The book describes how this has affected the Corps-sponsor relationship, and comments upon how each group must adjust to new planning and political realities.

An End State Methodology for Identifying Technology Needs for Environmental Management, with an Example from the Hanford Site Tanks

by Committee on Technologies for Cleanup of High-Level Waste in Tanks in the DOE Weapons Complex

The National Academies Press (NAP)--publisher for the National Academies--publishes more than 200 books a year offering the most authoritative views, definitive information, and groundbreaking recommendations on a wide range of topics in science, engineering, and health. Our books are unique in that they are authored by the nation's leading experts in every scientific field.

Innovations in Ground Water and Soil Cleanup: From Concept to Commercialization

by Committee on Innovative Remediation Technologies

Most books on ground water and soil cleanup address only the technologies themselves--not why new technologies are or are not developed. Innovations in Ground Water and Soil Cleanup takes a holistic approach to the entire field, addressing both the sluggish commercial development of ground water and soil cleanup technologies and the attributes of specific technologies. It warns that, despite cleanup expenditures of nearly $10 billion a year, the technologies remain rudimentary.This engaging book focuses on the failure of regulatory policy to link cleanup with the financial interests of the company responsible for the contamination. The committee explores why the market for remediation technology is uniquely lacking in economic drivers and why demand for innovation has been so much weaker than predicted.The volume explores how to evaluate the performance of cleanup technologies from the points of view of the public, regulators, cleanup entrepreneurs, and other stakeholders. The committee discusses approaches to standardizing performance testing, so that choosing a technology for a given site can be more timely and less contentious. Following up on Alternatives for Ground Water Cleanup (NRC, 1994), this sequel presents the state of the art in the cleanup of various types of ground water and soil contaminants. Strategies for making valid cost comparisons also are reviewed.

Waste Incineration & Public Health

by National Research Council

Incineration has been used widely for waste disposal, including household, hazardous, and medical waste--but there is increasing public concern over the benefits of combusting the waste versus the health risk from pollutants emitted during combustion. Waste Incineration and Public Health informs the emerging debate with the most up-to-date information available on incineration, pollution, and human health--along with expert conclusions and recommendations for further research and improvement of such areas as risk communication. The committee provides details on: Processes involved in incineration and how contaminants are released. Environmental dynamics of contaminants and routes of human exposure. Tools and approaches for assessing possible human health effects. Scientific concerns pertinent to future regulatory actions.The book also examines some of the social, psychological, and economic factors that affect the communities where incineration takes place and addresses the problem of uncertainty and variation in predicting the health effects of incineration processes.

Adequacy of Climate Observing Systems

by Panel on Climate Observing Systems Status

The National Academies Press (NAP)--publisher for the National Academies--publishes more than 200 books a year offering the most authoritative views, definitive information, and groundbreaking recommendations on a wide range of topics in science, engineering, and health. Our books are unique in that they are authored by the nation's leading experts in every scientific field.

Refine Search

Showing 1,851 through 1,875 of 24,048 results