Download or read book Wildfire Influence on Recent US Pollution Trends written by Marshall Burke and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Steady improvements in ambient air quality in the US over the past several decades have led to large public health benefits, and the policies that helped drive these improvements are considered landmarks in successful environmental policymaking. However, recent trends in PM2.5 concentrations, a key pollutant, have stagnated or begun to reverse throughout much of the US. We quantify the contribution of wildfire smoke to these trends and find that since 2016, wildfire smoke has significantly slowed or reversed previous improvements in average annual PM2.5 concentrations in two-thirds of US states, eroding 23% of previous gains on average in those states (equivalent to 3.6 years of air quality progress) and over 50% in multiple western states. Smoke influence on trends in extreme PM2.5 concentrations is detectable by 2010 and is concentrated in a dozen western states. Wildfire-driven increases in ambient PM2.5 concentrations are unregulated under current air pollution law, and, absent additional intervention, wildfire's contribution to regional and national air quality trends is likely to grow as the climate continues to warm.
Download or read book Carbonaceous Aerosol written by András Gelencsér and published by Springer Science & Business Media. This book was released on 2007-09-28 with total page 357 pages. Available in PDF, EPUB and Kindle. Book excerpt: The concept of carbonaceous aerosol has only recently emerged from atmospheric pollution studies; even standard nomenclature and terminology are still unsettled. This monograph is the first to offer comprehensive coverage of the nature and atmospheric role of carbonaceous aerosol particles. Atmospheric chemists, physicists, meteorologists, and modellers will find this a thought-inspiring and sometimes provocative overview of all global phenomena affected by or related to carbonaceous aerosol.
Download or read book Three Essays on Extreme Heat Wildfires and Air Pollution in the United States written by Zeying Huang and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the past several decades, more frequent and intense extreme heat events have been an increasing threat to human health and economic performance. These extreme heat events result in more fatalities than all other types of extreme weather events, as well as a series of clinical syndromes and chronic diseases, which may expose those with underlying health problems to higher mortality risks. At the same time, extreme heat increases wildfire risks. In recent decades, the United States (U.S.) has experienced upward trends in total acreages burned by wildfires and the average size of wildfires. These trends are expected to grow with the changing climate and as more households move to the wildland-urban interface (WUI). Wildfires can lead to direct injuries and fatalities as well as direct damage to properties and infrastructures. Also, wildfires can lead to environmental changes in many ecosystems. The burning of biomass and soil-based organic matter can generate a large amount of haze and smoke composed primarily of fine particulate matter (PM2.5), which is another threat in and of itself but also because it exacerbates the impacts of extreme heat, influences economic development patterns, and interferes with the enjoyment of environmental goods and services directly or indirectly.Based on the evidence of the inter-relatedness of heat and air pollution and the health risks of heat and air pollution, the first chapter provides nationally representative, robust, and precise estimates of the joint impacts of heat and PM2.5 on mortality in the U.S. The chapter employs a county-year balanced panel dataset covering 2,992 U.S. counties from 2001 through 2011 and applies a Fixed-effect Poisson model. I correct the endogeneity of PM2.5 by applying the control function approach and exploring transboundary externalities of all-source and wildfire-caused PM2.5. I find that the heat index and PM2.5 are positively and significantly associated with all mortalities. PM2.5 is a positive confounder of heat and vice versa. Failure to consider the endogeneity of PM2.5 leads to a substantial underestimation of PM2.5 risk. The overestimation bias caused by ignoring the potential confounding effect between heat and PM2.5 is magnified once the endogeneity of PM2.5 is further addressed. My evaluation also offers evidence of the spillover effects of both PM2.5 and wildfires.Wildfires affect human health directly and indirectly via the environmental (dis)amenities induced by wildfires. The second chapter employs the same dataset and further explores the mechanisms by which wildfires affect human health by examining the extent of the direct and indirect health impacts by applying a mediation analysis. In particular, it focuses on the air pollution (PM2.5) channel. It finds that complementary mediations exist for all-cause, respiratory system disease, and circulatory system disease mortality, and the indirect impacts of wildfires through PM2.5 account for 58%, 47%, and 21% of the total effects of wildfires, respectively. I do not find evidence of a mediation effect through PM2.5 for suicide, but the result suggests a potential delayed direct impact of wildfires on suicide. In addition, the analysis suggests that the spillover effect of wildfires is substantially larger than the local wildfire effect. Although most previous studies assume that wildfires are exogenous, this study finds that failing to consider the causes of wildfires will lead to upwardly biased estimates of health impacts.The last chapter conducts a non-market valuation of the impact of wildfires and wildfire-induced PM2.5 on the housing market by applying a hedonic price model and mediation analysis approach. This study also explores the potential reasons why more people choose to move in or near the wildland-urban interface (WUI). In particular, I examine the degree to which people may underestimate wildfire risks and the tradeoff between the enjoyment of natural resources and increased wildfire risks. I employ a nationwide repeat-sale dataset between 2010 and 2018, which covers 3,945,340 transaction records of 1,886,684 houses. I find that wildfires, especially distant wildfires, have a statistically significant detrimental impact on house prices via emitting PM2.5. There are also significant price disparities between houses located upwind and downwind locations of the wildfires, which may be explained by the substitution effect, externality, and the existence of other channels other than air pollution by which wildfires affect house prices. Moreover, the longer the property's adjacent areas remain free of wildfires, and the farther the nearest recent wildfire, the higher the property's sale price. While I find that households place a higher value on homes in locations with more greenery, they are also aware of the dangers of living near a wildland-urban interface.
Download or read book Implications of the California Wildfires for Health Communities and Preparedness written by National Academies of Sciences, Engineering, and Medicine and published by National Academies Press. This book was released on 2020-08-31 with total page 161 pages. Available in PDF, EPUB and Kindle. Book excerpt: California and other wildfire-prone western states have experienced a substantial increase in the number and intensity of wildfires in recent years. Wildlands and climate experts expect these trends to continue and quite likely to worsen in coming years. Wildfires and other disasters can be particularly devastating for vulnerable communities. Members of these communities tend to experience worse health outcomes from disasters, have fewer resources for responding and rebuilding, and receive less assistance from state, local, and federal agencies. Because burning wood releases particulate matter and other toxicants, the health effects of wildfires extend well beyond burns. In addition, deposition of toxicants in soil and water can result in chronic as well as acute exposures. On June 4-5, 2019, four different entities within the National Academies of Sciences, Engineering, and Medicine held a workshop titled Implications of the California Wildfires for Health, Communities, and Preparedness at the Betty Irene Moore School of Nursing at the University of California, Davis. The workshop explored the population health, environmental health, emergency preparedness, and health equity consequences of increasingly strong and numerous wildfires, particularly in California. This publication is a summary of the presentations and discussion of the workshop.
Download or read book Wildland Fire Smoke in the United States written by David L. Peterson and published by Springer Nature. This book was released on 2022-08-11 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt: This open access book synthesizes current information on wildland fire smoke in the United States, providing a scientific foundation for addressing the production of smoke from wildland fires. This will be increasingly critical as smoke exposure and degraded air quality are expected to increase in extent and severity in a warmer climate. Accurate smoke information is a foundation for helping individuals and communities to effectively mitigate potential smoke impacts from wildfires and prescribed fires. The book documents our current understanding of smoke science for (1) primary physical, chemical, and biological issues related to wildfire and prescribed fire, (2) key social issues, including human health and economic impacts, and (3) current and anticipated management and regulatory issues. Each chapter provides a summary of priorities for future research that provide a roadmap for developing scientific information that can improve smoke and fire management over the next decade.
Download or read book Wildland Fires and Air Pollution written by Andrzej Bytnerowicz and published by Elsevier. This book was released on 2009 with total page 688 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wildland fires are one of the most devastating and terrifying forces of nature. While their effects are mostly destructive they also help with regeneration of forests and other ecosystems. Low-intensity fires clear accumulating biomass reducing risk of catastrophic crown fires and can be used as an effective management tool. This book presents current understanding of wildland fires and air quality as well as their effects on human health, forests and other ecosystems. in the first section of the book the basics of wildland fires and resulting emissions are presented from the perspective of changing global climate, air quality impairment and effects on environmental and human health and security. in the second section, effects of wildland fires on air quality, visibility and human health in various regions of the Earth are discussed. The third section of the book deals with complex issues of the ecological impacts of fires and air pollution in forests and chaparral in North America. The fourth section discusses various management issues facing land and fire managers which are related to wildfires, use of prescribed fires, and air quality. This section also presents various modeling systems used for describing fire dangers and behavior as well as smoke and air pollution predictions applied in the risk assessment analysis. The book concludes with a series of expert recommendations for wildland fire and atmospheric research.
Download or read book Firestorm written by Edward Struzik and published by Island Press. This book was released on 2017-10-05 with total page 271 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Frightening...Firestorm comes alive when Struzik discusses the work of offbeat scientists." —New York Times Book Review "Comprehensive and compelling." —Booklist "A powerful message." —Kirkus "Should be required reading." —Library Journal For two months in the spring of 2016, the world watched as wildfire ravaged the Canadian town of Fort McMurray. Firefighters named the fire “the Beast.” It acted like a mythical animal, alive with destructive energy, and they hoped never to see anything like it again. Yet it’s not a stretch to imagine we will all soon live in a world in which fires like the Beast are commonplace. A glance at international headlines shows a remarkable increase in higher temperatures, stronger winds, and drier lands– a trifecta for igniting wildfires like we’ve rarely seen before. This change is particularly noticeable in the northern forests of the United States and Canada. These forests require fire to maintain healthy ecosystems, but as the human population grows, and as changes in climate, animal and insect species, and disease cause further destabilization, wildfires have turned into a potentially uncontrollable threat to human lives and livelihoods. Our understanding of the role fire plays in healthy forests has come a long way in the past century. Despite this, we are not prepared to deal with an escalation of fire during periods of intense drought and shorter winters, earlier springs, potentially more lightning strikes and hotter summers. There is too much fuel on the ground, too many people and assets to protect, and no plan in place to deal with these challenges. In Firestorm, journalist Edward Struzik visits scorched earth from Alaska to Maine, and introduces the scientists, firefighters, and resource managers making the case for a radically different approach to managing wildfire in the 21st century. Wildfires can no longer be treated as avoidable events because the risk and dangers are becoming too great and costly. Struzik weaves a heart-pumping narrative of science, economics, politics, and human determination and points to the ways that we, and the wilder inhabitants of the forests around our cities and towns, might yet flourish in an age of growing megafires.
Download or read book The Costs of Wildfire in California written by California Council on Science and Technology and published by . This book was released on 2020-10-29 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Review of the Draft Fourth National Climate Assessment written by National Academies of Sciences, Engineering, and Medicine and published by National Academies Press. This book was released on 2018-06-18 with total page 207 pages. Available in PDF, EPUB and Kindle. Book excerpt: Climate change poses many challenges that affect society and the natural world. With these challenges, however, come opportunities to respond. By taking steps to adapt to and mitigate climate change, the risks to society and the impacts of continued climate change can be lessened. The National Climate Assessment, coordinated by the U.S. Global Change Research Program, is a mandated report intended to inform response decisions. Required to be developed every four years, these reports provide the most comprehensive and up-to-date evaluation of climate change impacts available for the United States, making them a unique and important climate change document. The draft Fourth National Climate Assessment (NCA4) report reviewed here addresses a wide range of topics of high importance to the United States and society more broadly, extending from human health and community well-being, to the built environment, to businesses and economies, to ecosystems and natural resources. This report evaluates the draft NCA4 to determine if it meets the requirements of the federal mandate, whether it provides accurate information grounded in the scientific literature, and whether it effectively communicates climate science, impacts, and responses for general audiences including the public, decision makers, and other stakeholders.
Download or read book Global Climate Change Impacts in the United States written by U.S. Global Change Research Program and published by Cambridge University Press. This book was released on 2009-08-24 with total page 193 pages. Available in PDF, EPUB and Kindle. Book excerpt: Summarizes the science of climate change and impacts on the United States, for the public and policymakers.
Download or read book Climate Change and Air Pollution written by Rais Akhtar and published by Springer. This book was released on 2017-10-05 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book discusses regional and international climate-change, air- pollution and human-health scenarios. The research, from both industrialized and developing countries, focuses on region-specific perspectives of climate change impacts on air pollution. After analyzing the variations of climate data over recent decades, the authors consider the different effects of climate change on air pollution and health. As stressed by the IPCC, “pollen, smoke and ozone levels are likely to increase in a warming world, affecting the health of residents of major cities. Rising temperatures will worsen air quality through a combination of more ozone in cities, bigger wild fires and worse pollen outbreaks,” according to a major UN climate report. The report follows the World Health Organization in finding that air pollution is the world’s greatest environmental health risk, killing 7 million people in 2014 (compared to 0.4 million deaths due to malaria). Deteriorating air quality will most affect the elderly, children, people with chronic ill-health and expectant mothers. Another report suggests that more than 5.5 million people die prematurely each year due to air pollution with over half of those deaths occurring in China and India. A study on the air pollution in the USA,suggests that more than half of US population lives in areas with potentially dangerous air pollution, and about six out of 10 of the top cities for air pollution in the USA are located in the state of California. In the face of future climate change, scientists have urged stronger emission controls to avoid worsening air pollution and the associated exacerbation of health problems, especially in more populated regions of the world. It is hoped that the implementation of the Paris Climate Agreement will help minimize air pollution. Additionally the authors consider the various measures that different countries and groups of countries, like the European Union, have adopted to mitigate the problems arising from climate change and to safeguard the health of population. The book examines the increasing incidence of diseases largely caused by climate change. The countries/regions covered in this study include the USA, Northern Europe (U.K).,Southern Europe ( Italy), Canada, Australia, East Asia, Russia, Hong Kong, Taiwan, Thailand, Malaysia, Indonesia, India, South Africa, Mexico, Brazil, Caribbean countries, and Argentina.
Download or read book Ecosystems of California written by Harold Mooney and published by Univ of California Press. This book was released on 2016-01-19 with total page 1008 pages. Available in PDF, EPUB and Kindle. Book excerpt: This long-anticipated reference and sourcebook for CaliforniaÕs remarkable ecological abundance provides an integrated assessment of each major ecosystem typeÑits distribution, structure, function, and management. A comprehensive synthesis of our knowledge about this biologically diverse state, Ecosystems of California covers the state from oceans to mountaintops using multiple lenses: past and present, flora and fauna, aquatic and terrestrial, natural and managed. Each chapter evaluates natural processes for a specific ecosystem, describes drivers of change, and discusses how that ecosystem may be altered in the future. This book also explores the drivers of CaliforniaÕs ecological patterns and the history of the stateÕs various ecosystems, outlining how the challenges of climate change and invasive species and opportunities for regulation and stewardship could potentially affect the stateÕs ecosystems. The text explicitly incorporates both human impacts and conservation and restoration efforts and shows how ecosystems support human well-being. Edited by two esteemed ecosystem ecologists and with overviews by leading experts on each ecosystem, this definitive work will be indispensable for natural resource management and conservation professionals as well as for undergraduate or graduate students of CaliforniaÕs environment and curious naturalists.
Download or read book Federal Land Ownership written by Congressional Research Congressional Research Service and published by CreateSpace. This book was released on 2014-12-29 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: The federal government owns roughly 640 million acres, about 28% of the 2.27 billion acres of land in the United States. Four agencies administer 608.9 million acres of this land: the Bureau of Land Management (BLM), Fish and Wildlife Service (FWS), and National Park Service (NPS) in the Department of the Interior (DOI), and the Forest Service (FS) in the Department of Agriculture. Most of these lands are in the West and Alaska. In addition, the Department of Defense administers 14.4 million acres in the United States consisting of military bases, training ranges, and more. Numerous other agencies administer the remaining federal acreage. The lands administered by the four land agencies are managed for many purposes, primarily related to preservation, recreation, and development of natural resources. Yet each of these agencies has distinct responsibilities. The BLM manages 247.3 million acres of public land and administers about 700 million acres of federal subsurface mineral estate throughout the nation. The BLM has a multiple-use, sustained-yield mandate that supports a variety of uses and programs, including energy development, recreation, grazing, wild horses and burros, and conservation. The FS manages 192.9 million acres also for multiple uses and sustained yields of various products and services, including timber harvesting, recreation, grazing, watershed protection, and fish and wildlife habitats. Most of the FS lands are designated national forests. Wildfire protection is increasingly important for both agencies. The FWS manages 89.1 million acres of the total, primarily to conserve and protect animals and plants. The National Wildlife Refuge System includes wildlife refuges, waterfowl production areas, and wildlife coordination units. The NPS manages 79.6 million acres in 401 diverse units to conserve lands and resources and make them available for public use. Activities that harvest or remove resources generally are prohibited. Federal land ownership is concentrated in the West. Specifically, 61.2% of Alaska is federally owned, as is 46.9% of the 11 coterminous western states. By contrast, the federal government owns 4.0% of lands in the other states. This western concentration has contributed to a higher degree of controversy over land ownership and use in that part of the country. Throughout America's history, federal land laws have reflected two visions: keeping some lands in federal ownership while disposing of others. From the earliest days, there has been conflict between these two visions. During the 19th century, many laws encouraged settlement of the West through federal land disposal. Mostly in the 20th century, emphasis shifted to retention of federal lands. Congress has provided varying land acquisition and disposal authorities to the agencies, ranging from restricted to broad. As a result of acquisitions and disposals, federal land ownership by the five agencies has declined by 23.5 million acres since 1990, from 646.9 million acres to 623.3 million acres. Much of the decline is attributable to BLM land disposals in Alaska and also reductions in DOD land. Numerous issues affecting federal land management are before Congress. They include the extent of federal ownership, and whether to decrease, maintain, or increase the amount of federal holdings; the condition of currently owned federal infrastructure and lands, and the priority of their maintenance versus new acquisitions; the optimal balance between land use and protection, and whether federal lands should be managed primarily to benefit the nation as a whole or instead to benefit the localities and states; and border control on federal lands along the southwest border.
Download or read book The 1978 National Fire Danger Rating System written by and published by . This book was released on 1984 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Climate Change Air Pollution and Corporate Performance written by Jing Kong and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper examines the effect of climate change on corporate performance. Using exposure to wildfire smoke as a novel setting, I document a significant physical effect of climate change on corporate operating income. On average, a one-standard-deviation increase of wildfire smoke exposure is associated with an $18.7 million loss in operating income. The effect is strongest for firms with high R&D-to-employee ratios, with high average labor costs, or that operate in industries that are highly dependent on skilled labor, suggesting that decreased productivity among high-skilled employees drives the observed effect. I also find that the stock market does not fully incorporate the effect of wildfire smoke into stock prices until annual earnings announcements. More climate change disclosure moderates the negative market reaction around annual earnings announcements. Overall, this paper documents the less salient effects of climate change on corporate performance and asset prices.
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.
Download or read book Global Sources of Local Pollution written by National Research Council and published by National Academies Press. This book was released on 2010-02-15 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent advances in air pollution monitoring and modeling capabilities have made it possible to show that air pollution can be transported long distances and that adverse impacts of emitted pollutants cannot be confined to one country or even one continent. Pollutants from traffic, cooking stoves, and factories emitted half a world away can make the air we inhale today more hazardous for our health. The relative importance of this "imported" pollution is likely to increase, as emissions in developing countries grow, and air quality standards in industrial countries are tightened. Global Sources of Local Pollution examines the impact of the long-range transport of four key air pollutants (ozone, particulate matter, mercury, and persistent organic pollutants) on air quality and pollutant deposition in the United States. It also explores the environmental impacts of U.S. emissions on other parts of the world. The book recommends that the United States work with the international community to develop an integrated system for determining pollution sources and impacts and to design effective response strategies. This book will be useful to international, federal, state, and local policy makers responsible for understanding and managing air pollution and its impacts on human health and well-being.
