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Pollution How Brings Loss

Author : Johnny Ch Lok
Publisher : Independently Published
ISBN 13 :
Total Pages : 136 pages
Book Rating : 4.5/5 (795 download)

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Book Synopsis Pollution How Brings Loss by : Johnny Ch Lok

Download or read book Pollution How Brings Loss written by Johnny Ch Lok and published by Independently Published. This book was released on 2020-12-10 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: Environment pollution influences economy developmentWhy does environment pollution will impact global economy growth? My earth is beginning to run out of natural resource: metals and energysources, as well as food. However, environment pollution is main factor influences our food will be shortage to supply, land is not clean, water is dirty, air pollution increases. But, whether these natural environment challenge has direct relationship to influence global economic growth rapidly or recession causes. I shall explain the reason as below: If we are not going to be warmed to oblivion as climate alarmists are trying to convince everybody, our traditional civilization will be weakened or even collapse at some point, due to the growing scarcity of basic material required to keep the world economy going. Various media present the public with alarming-looking diagrams that the number of years that separate us from the end of copper, lead, crude oil, natural gas etc. natural resource shortage crisis will cause because global warm natural environment damages our natural resource, even economy development. For example, when oil natural resourceis shortage, then oil price will rises because supply is less, but demand is increasing. Finally, the exceed climbing up oil price will bring other productys need to be decreased, e.g., cars need oil, but because oil price is increasing and it can not control to adjust its maximum price level. IN generally, many countries people feel oil price is unreasonable rasied, so the oil price is unreasonable going up factor, it must influence many potential car buyers' car driving need desire to be decreased. Then, car demand number will also decrease. So, environment pollution and global warm may cause natural shortage as well as any products or food prices increase to bring consumption desire decreases. Such as when rice is shortage, due to the number of farms is polluted to cause, there are not enough landto supply to grow rice decreases, then global rice price must goes up, when global population is increasing, but rice supply number is decreasing. Then, the poor people will not buy rice to eat easily because rice supply is limited to supply to satisfy global rice consumers' needs. So, environment pollution will causepoor people can not buy any food to eat easily in possible, due to inequalty food supply factor. Being mathematicians, rather than philosophers, the authors of the report in question built a model whose repeated runs projected the collapse around the year 2000 due to lack of food, fuels and industrial minerals. Other authors as that time dealt with rubber and different products seen as imnportant to be influence supplyshortage because environment pollution crisis causes the natural climate damages. IN fact, the same Bureau of Mines had warmed still earlier in 1896, that for a charge, the US reserves of oil would last only for four years. IN the case, the lonf periods ofperceived bountiful availability of mineral resources alternate with shorter periods of opposite perceptions. The natural of these lonf on average 30 to 40 years cycles have reasonably well - founded explanations. Mineral resources cycles may be reasonably well explained within the framework of economics, it means that why and how environment pollution and economy growth or recession have close effect and cause relationship. An no less importantly, historical evidence from the last nineteenth century is withthe proposed analytical framework.The reasons may include as below: The first reason may be explained is how the dynamics of demand and supply generate alternating periods of excess demand and excess supply that color people's thinkingabout the availability of mineral resources.

POLLUTION HOW BRINGS

Author : JOHN. LOK
Publisher :
ISBN 13 : 9789798885914
Total Pages : pages
Book Rating : 4.8/5 (859 download)

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Book Synopsis POLLUTION HOW BRINGS by : JOHN. LOK

Download or read book POLLUTION HOW BRINGS written by JOHN. LOK and published by . This book was released on 2022 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Economic Losses from Marine Pollution

Author : Douglas D. Ofiara
Publisher : Island Press
ISBN 13 : 9781597263474
Total Pages : 412 pages
Book Rating : 4.2/5 (634 download)

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Book Synopsis Economic Losses from Marine Pollution by : Douglas D. Ofiara

Download or read book Economic Losses from Marine Pollution written by Douglas D. Ofiara and published by Island Press. This book was released on 2001-05 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt: Marine pollution causes significant damage to fisheries and other economically productive uses of the ocean. The value of that damage can be quantified by economists, but the meanings of those valuations and how they are derived are often obscure to noneconomists.Economic Losses from Marine Pollution brings a fuller understanding of the variety and extent of marine losses and how they are assessed to scientists, lawyers, and environmentalists by systematically identifying and classifying marine losses and relating them to models and methods of economic valuation. The authors use a step-by-step approach to show how economists have used these methods and how they approach the problem of assessing economic damage.The book begins by describing the importance of economic valuation of marine damages, the history of concern over marine pollution, and the development of economic methodologies to assess damage from it. Following that, the book: considers types of marine pollution and their effects on organisms, ecosystems, and humans, and the corresponding economic effects of those biological impacts introduces the economic principles and methods needed to understand and to assess economic damages expresses losses from water quality impairments in terms of economic value introduces the basic economic techniques that have been developed and used to measure changes in economic value discusses how to apply those economic techniques, and presents a variety of practical examples explores limitations and problems that can arise in such applied work.Economic Losses from Marine Pollution includes all of the relevant economic theory together with specific examples of how that theory has been and can be applied. It offers environmental professionals with little or no background in economics the basic economic tools needed to understand economic valuations of environmental damage, and represents a unique handbook for environmental and marine scientists, lawyers, economists, policy professionals, and anyone interested in issues of marine water quality.

The Global Illness and Pollution Environment Brings

Author : Johnny Ch LOK
Publisher :
ISBN 13 :
Total Pages : 347 pages
Book Rating : 4.6/5 (282 download)

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Book Synopsis The Global Illness and Pollution Environment Brings by : Johnny Ch LOK

Download or read book The Global Illness and Pollution Environment Brings written by Johnny Ch LOK and published by . This book was released on 2020-03-19 with total page 347 pages. Available in PDF, EPUB and Kindle. Book excerpt: Demand and supply theory explainsthe relationship between pollution and death disease and consumer behavior and economic recessionNowadays, any countries will have death diseases occur, when the country is encountering any kinds of death diseases, then the country will have possible to bring many people die. What are the negative influences or impacts to influence the country's consumer behaviors when the country is encountering any kinds of death disease ? Why does death disease bring economic recession to the country when the country can not control the death disease to cause many people to die , when they are free to go to anywhere and the owning death disease people can contract any people , they have no death disease easily.What is the negative consumer behavior when the country has many people , they are owning death disease? Why can death disease bring economic recession to the country when it has many people are owning death disease risk?The economic problem - sometimes called the basic or central economic problem - asserts that an economy's finite resources are insufficient to satisfy all human wants and needs. Economics involves the study of how to allocate resources in conditions of scarcity However, viewing economics as the study of how society allocates resources can lead to conflation of normative economic planning and empirical study of how economic agents operate in these conditions.Such as one country has many people are owning death disease, there are many people feel unsafe, they will not dislike to go to any where because they are fear to be contracted from the owning death disease people, but they do not know whom are owning death disease. So, the restaurants, cinemas, shopping centers, libraries transportation tools etc. any public shopping or leisure places will have less people. When the country believe that any one will be contracted to get death disease easily and the government send this death disease message to let itself country to know that they will have death disease risk when they go to anywhere to contract any people, any the kind of death disease can pass air or mouth or hand contact method to cause the health people to get the kind of death disease from the owning death disease people. Then, many health people won't choose to go to anywhere to consume or play leisure easily because they are fear to get death disease from any death disease people in streets or public shopping centers or public libraries, book shops or cinemas or restaurants.

Pollution and the Death of Man

Author : Francis A. Schaeffer
Publisher : Crossway
ISBN 13 : 143351950X
Total Pages : 162 pages
Book Rating : 4.4/5 (335 download)

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Book Synopsis Pollution and the Death of Man by : Francis A. Schaeffer

Download or read book Pollution and the Death of Man written by Francis A. Schaeffer and published by Crossway. This book was released on 2011-03-02 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt: At the creation of the world, God gave mankind the responsibility to exercise dominion over the earth. Man was to use the earth and its abundance of resources to satisfy his physical needs, but he was also to care for the earth and its creatures as a wise and godly steward. Reading about endangered species or another oil spill will make it abundantly clear that the human race has failed miserably in its God-given mandate. How did we get to this point? Where should we go from here? This classic by Francis Schaeffer, now repackaged, looks at contemporary ecological crises through the lens of theology and Scripture. Renowned for his work in applied philosophy and theology, Schaeffer answers serious philosophical questions about creation and ecology. He concludes that we must return to a profoundly and radically biblical understanding of God’s relationship to the earth, and of our divine mandate to exercise godly dominion over it. Repackaged and republished, Pollution and the Death of Man carries an important and relevant message for our day. With concluding chapter by Udo Middelmann.

The Economic Consequences of Outdoor Air Pollution

Author : OECD
Publisher : OECD Publishing
ISBN 13 : 9264257470
Total Pages : 120 pages
Book Rating : 4.2/5 (642 download)

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Book Synopsis The Economic Consequences of Outdoor Air Pollution by : OECD

Download or read book The Economic Consequences of Outdoor Air Pollution written by OECD and published by OECD Publishing. This book was released on 2016-06-09 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report provides a comprehensive assessment of the economic consequences of outdoor air pollution in the coming decades, focusing on the impacts on mortality, morbidity, and changes in crop yields as caused by high concentrations of pollutants.

WHO global air quality guidelines

Author : Weltgesundheitsorganisation
Publisher : World Health Organization
ISBN 13 : 9240034226
Total Pages : 300 pages
Book Rating : 4.2/5 (4 download)

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Book Synopsis WHO global air quality guidelines by : Weltgesundheitsorganisation

Download or read book WHO global air quality guidelines written by Weltgesundheitsorganisation and published by World Health Organization. This book was released on 2021-09-07 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: The main objective of these updated global guidelines is to offer health-based air quality guideline levels, expressed as long-term or short-term concentrations for six key air pollutants: PM2.5, PM10, ozone, nitrogen dioxide, sulfur dioxide and carbon monoxide. In addition, the guidelines provide interim targets to guide reduction efforts of these pollutants, as well as good practice statements for the management of certain types of PM (i.e., black carbon/elemental carbon, ultrafine particles, particles originating from sand and duststorms). These guidelines are not legally binding standards; however, they provide WHO Member States with an evidence-informed tool, which they can use to inform legislation and policy. Ultimately, the goal of these guidelines is to help reduce levels of air pollutants in order to decrease the enormous health burden resulting from the exposure to air pollution worldwide.

Health of People, Health of Planet and Our Responsibility

Author : Wael Al-Delaimy
Publisher : Springer Nature
ISBN 13 : 3030311252
Total Pages : 417 pages
Book Rating : 4.0/5 (33 download)

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Book Synopsis Health of People, Health of Planet and Our Responsibility by : Wael Al-Delaimy

Download or read book Health of People, Health of Planet and Our Responsibility written by Wael Al-Delaimy and published by Springer Nature. This book was released on 2020-05-13 with total page 417 pages. Available in PDF, EPUB and Kindle. Book excerpt: This open access book not only describes the challenges of climate disruption, but also presents solutions. The challenges described include air pollution, climate change, extreme weather, and related health impacts that range from heat stress, vector-borne diseases, food and water insecurity and chronic diseases to malnutrition and mental well-being. The influence of humans on climate change has been established through extensive published evidence and reports. However, the connections between climate change, the health of the planet and the impact on human health have not received the same level of attention. Therefore, the global focus on the public health impacts of climate change is a relatively recent area of interest. This focus is timely since scientists have concluded that changes in climate have led to new weather extremes such as floods, storms, heat waves, droughts and fires, in turn leading to more than 600,000 deaths and the displacement of nearly 4 billion people in the last 20 years. Previous work on the health impacts of climate change was limited mostly to epidemiologic approaches and outcomes and focused less on multidisciplinary, multi-faceted collaborations between physical scientists, public health researchers and policy makers. Further, there was little attention paid to faith-based and ethical approaches to the problem. The solutions and actions we explore in this book engage diverse sectors of civil society, faith leadership, and political leadership, all oriented by ethics, advocacy, and policy with a special focus on poor and vulnerable populations. The book highlights areas we think will resonate broadly with the public, faith leaders, researchers and students across disciplines including the humanities, and policy makers.

Illness and Pollution Environment Brings

Author : Johnny Ch LOK
Publisher :
ISBN 13 :
Total Pages : 353 pages
Book Rating : 4.6/5 (351 download)

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Book Synopsis Illness and Pollution Environment Brings by : Johnny Ch LOK

Download or read book Illness and Pollution Environment Brings written by Johnny Ch LOK and published by . This book was released on 2020-04-08 with total page 353 pages. Available in PDF, EPUB and Kindle. Book excerpt: ⦁Environmental policy aims to reduce how the economy and the businesses are to adverse environmental events, by reducing environmental risk both. For example, not just investments that facilities emissions reductions to avoid dangerous climate change, but also those investments that help to economy adapt to climate impacts already locked in by past and current emissions. The natural environment plays a key role in our economy, as a direct input into production and through the many services it provides. Environmental resources, such as minerals and fossil fuels directly facilities the production of products and services. The environment provides other services that enable economic activity, such as carbon, filtering air and soil formation. It is also vital for against flood risk, and soil formation. It is also vital for our wellbeing, providing us with recreational opportunities, improving our health and much more. Human wellbeing in a complex and diverse concept, determined by a wide-range of factors including levels of income absolute and relative, health status, educational attainment, housing conditions and environmental quality.⦁National capital contributes to economic output through two main channels: directly as an input to the process of economic activity, indirectly through its effect on the productivity of the other factors of production. However, natural capital is as a direct input to wealth creation, which can provide the raw materials for economic production of products the raw materials for economic production of products and services, it includes non renewable resources like, fossil fuels, minerals metal extracted from the natural environment to produce energy, machinery, consumer products, renewable resources, natural processes or own reproduction. Why do our governments need to concern environmental policy?

The Invisible Killer

Author : Gary Fuller
Publisher : Melville House
ISBN 13 : 1612197841
Total Pages : 320 pages
Book Rating : 4.6/5 (121 download)

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Book Synopsis The Invisible Killer by : Gary Fuller

Download or read book The Invisible Killer written by Gary Fuller and published by Melville House. This book was released on 2019-03-19 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: An urgent examination of one of the biggest global crises facing us today--air pollution--looking at the drastic worsening of the problem, and what we can do about it. "Fascinating, readable, and terrifying in equal measure." —Mark Lynas, author of Six Degrees The air pollution that we breathe every day is largely invisible—but it is killing us. How did it get this bad, and how can we stop it? Far from a modern-day problem, scientists were aware of the impact of air pollution as far back as the seventeenth century. Now, as more of us live in cities, we are closer than ever to pollution sources, and the detrimental impact on the environment and our health has reached crisis point. The Invisible Killer will introduce you to the incredible individuals whose groundbreaking research paved the way to today's understanding of air pollution, often at their own detriment. Gary Fuller's global story examines devastating incidents from London's Great Smog to Norway's acid rain; Los Angeles's traffic problem to wood-burning damage in New Zealand. Fuller argues that the only way to alter the future course of our planet and improve collective global health is for city and national governments to stop ignoring evidence and take action, persuading the public and making polluters bear the full cost of the harm that they do. The decisions that we make today will impact on our health for decades to come. The Invisible Killer is an essential book for our times and a cautionary tale we need to take heed of.

The Inside Story

Author :
Publisher :
ISBN 13 :
Total Pages : 40 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis The Inside Story by :

Download or read book The Inside Story written by and published by . This book was released on 1993 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Environmental Economics: A Very Short Introduction

Author : Stephen Smith
Publisher : OUP Oxford
ISBN 13 : 0191620297
Total Pages : 152 pages
Book Rating : 4.1/5 (916 download)

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Book Synopsis Environmental Economics: A Very Short Introduction by : Stephen Smith

Download or read book Environmental Economics: A Very Short Introduction written by Stephen Smith and published by OUP Oxford. This book was released on 2011-09-22 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: If environmental protection is costly, how much should we spend on pollution control? Is it worth reducing pollution to zero, or should we accept some level of pollution because of the economic benefits associated with it? How can we assess the benefits that people get from a less-polluted atmosphere? In broad terms, environmental economics looks at how economic activity and policy affect the environment in which we live. Some production generates pollution, such as power station emissions causing acid rain and contributing to global warming, but household consumption decisions also affect the environment, where more consumption can mean more waste sent to polluting incinerators. However, pollution is not an inevitable consequence of economic activity - environmental policies can require polluting firms to clean up their emissions, and can encourage people to change their behaviour, through environmental taxes on polluting goods, for example. Generally, though, these measures will involve some costs, such as installing pollution control equipment. So there's a trade-off: a cleaner environment, but economic costs. In recent years, many economists have argued for greater use of incentive in the form of pollution charges and emissions trading rather than more traditional direct regulation of polluters. In this Very Short Introduction, Stephen Smith discusses environmental issues including pollution control, reducing environmental damage, and global climate change policies, answering questions about how we should balance environmental and economic considerations, and what form government policies should take. Including many illustrative case studies and examples he shows that this is an exciting field of economics, and one that is at the heart of many public debates and controversies. ABOUT THE SERIES: The Very Short Introductions series from Oxford University Press contains hundreds of titles in almost every subject area. These pocket-sized books are the perfect way to get ahead in a new subject quickly. Our expert authors combine facts, analysis, perspective, new ideas, and enthusiasm to make interesting and challenging topics highly readable.

Environmental Engineering for the 21st Century

Author : National Academies of Sciences, Engineering, and Medicine
Publisher : National Academies Press
ISBN 13 : 0309476550
Total Pages : 125 pages
Book Rating : 4.3/5 (94 download)

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Book Synopsis Environmental Engineering for the 21st Century by : National Academies of Sciences, Engineering, and Medicine

Download or read book Environmental Engineering for the 21st Century written by National Academies of Sciences, Engineering, and Medicine and published by National Academies Press. This book was released on 2019-03-08 with total page 125 pages. Available in PDF, EPUB and Kindle. Book excerpt: Environmental engineers support the well-being of people and the planet in areas where the two intersect. Over the decades the field has improved countless lives through innovative systems for delivering water, treating waste, and preventing and remediating pollution in air, water, and soil. These achievements are a testament to the multidisciplinary, pragmatic, systems-oriented approach that characterizes environmental engineering. Environmental Engineering for the 21st Century: Addressing Grand Challenges outlines the crucial role for environmental engineers in this period of dramatic growth and change. The report identifies five pressing challenges of the 21st century that environmental engineers are uniquely poised to help advance: sustainably supply food, water, and energy; curb climate change and adapt to its impacts; design a future without pollution and waste; create efficient, healthy, resilient cities; and foster informed decisions and actions.

Soil pollution: a hidden reality

Author : Food and Agriculture Organization of the United Nations
Publisher : Food & Agriculture Org.
ISBN 13 : 9251305056
Total Pages : 156 pages
Book Rating : 4.2/5 (513 download)

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Book Synopsis Soil pollution: a hidden reality by : Food and Agriculture Organization of the United Nations

Download or read book Soil pollution: a hidden reality written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 2018-04-30 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document presents key messages and the state-of-the-art of soil pollution, its implications on food safety and human health. It aims to set the basis for further discussion during the forthcoming Global Symposium on Soil Pollution (GSOP18), to be held at FAO HQ from May 2nd to 4th 2018. The publication has been reviewed by the Intergovernmental Technical Panel on Soil (ITPS) and contributing authors. It addresses scientific evidences on soil pollution and highlights the need to assess the extent of soil pollution globally in order to achieve food safety and sustainable development. This is linked to FAO’s strategic objectives, especially SO1, SO2, SO4 and SO5 because of the crucial role of soils to ensure effective nutrient cycling to produce nutritious and safe food, reduce atmospheric CO2 and N2O concentrations and thus mitigate climate change, develop sustainable soil management practices that enhance agricultural resilience to extreme climate events by reducing soil degradation processes. This document will be a reference material for those interested in learning more about sources and effects of soil pollution.

Communities in Action

Author : National Academies of Sciences, Engineering, and Medicine
Publisher : National Academies Press
ISBN 13 : 0309452961
Total Pages : 583 pages
Book Rating : 4.3/5 (94 download)

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Book Synopsis Communities in Action by : National Academies of Sciences, Engineering, and Medicine

Download or read book Communities in Action written by National Academies of Sciences, Engineering, and Medicine and published by National Academies Press. This book was released on 2017-04-27 with total page 583 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the United States, some populations suffer from far greater disparities in health than others. Those disparities are caused not only by fundamental differences in health status across segments of the population, but also because of inequities in factors that impact health status, so-called determinants of health. Only part of an individual's health status depends on his or her behavior and choice; community-wide problems like poverty, unemployment, poor education, inadequate housing, poor public transportation, interpersonal violence, and decaying neighborhoods also contribute to health inequities, as well as the historic and ongoing interplay of structures, policies, and norms that shape lives. When these factors are not optimal in a community, it does not mean they are intractable: such inequities can be mitigated by social policies that can shape health in powerful ways. Communities in Action: Pathways to Health Equity seeks to delineate the causes of and the solutions to health inequities in the United States. This report focuses on what communities can do to promote health equity, what actions are needed by the many and varied stakeholders that are part of communities or support them, as well as the root causes and structural barriers that need to be overcome.

The Ongoing Challenge of Managing Carbon Monoxide Pollution in Fairbanks, Alaska

Author : National Research Council
Publisher : National Academies Press
ISBN 13 : 0309182751
Total Pages : 158 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis The Ongoing Challenge of Managing Carbon Monoxide Pollution in Fairbanks, Alaska by : National Research Council

Download or read book The Ongoing Challenge of Managing Carbon Monoxide Pollution in Fairbanks, Alaska written by National Research Council and published by National Academies Press. This book was released on 2002-08-22 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt: Carbon monoxide (CO) is a toxic air pollutant produced largely from vehicle emissions. Breathing CO at high concentrations leads to reduced oxygen transport by hemoglobin, which has health effects that include impaired reaction timing, headaches, lightheadedness, nausea, vomiting, weakness, clouding of consciousness, coma, and, at high enough concentrations and long enough exposure, death. In recognition of those health effects, the U.S. Environmental Protection Agency (EPA), as directed by the Clean Air Act, established the health-based National Ambient Air Quality Standards (NAAQS) for CO in 1971. Most areas that were previously designated as "nonattainment" areas have come into compliance with the NAAQS for CO, but some locations still have difficulty in attaining the CO standards. Those locations tend to have topographical or meteorological characteristics that exacerbate pollution. In view of the challenges posed for some areas to attain compliance with the NAAQS for CO, congress asked the National Research Council to investigate the problem of CO in areas with meteorological and topographical problems. This interim report deals specifically with Fairbanks, Alaska. Fairbanks was chosen as a case study because its meteorological and topographical characteristics make it susceptible to severe winter inversions that trap CO and other pollutants at ground level.

Clean Coastal Waters

Author : National Research Council
Publisher : National Academies Press
ISBN 13 : 0309069483
Total Pages : 422 pages
Book Rating : 4.3/5 (9 download)

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Book Synopsis Clean Coastal Waters by : National Research Council

Download or read book Clean Coastal Waters written by National Research Council and published by National Academies Press. This book was released on 2000-08-17 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt: Environmental problems in coastal ecosystems can sometimes be attributed to excess nutrients flowing from upstream watersheds into estuarine settings. This nutrient over-enrichment can result in toxic algal blooms, shellfish poisoning, coral reef destruction, and other harmful outcomes. All U.S. coasts show signs of nutrient over-enrichment, and scientists predict worsening problems in the years ahead. Clean Coastal Waters explains technical aspects of nutrient over-enrichment and proposes both immediate local action by coastal managers and a longer-term national strategy incorporating policy design, classification of affected sites, law and regulation, coordination, and communication. Highlighting the Gulf of Mexico's "Dead Zone," the Pfiesteria outbreak in a tributary of Chesapeake Bay, and other cases, the book explains how nutrients work in the environment, why nitrogen is important, how enrichment turns into over-enrichment, and why some environments are especially susceptible. Economic as well as ecological impacts are examined. In addressing abatement strategies, the committee discusses the importance of monitoring sites, developing useful models of over-enrichment, and setting water quality goals. The book also reviews voluntary programs, mandatory controls, tax incentives, and other policy options for reducing the flow of nutrients from agricultural operations and other sources.