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1.
Wildland fire affects both public and private resources throughout the United States. A century of fire suppression has contributed to changing ecological conditions and accumulated fuel loads. Managers have used a variety of approaches to address these conditions and reduce the likelihood of wildland fires that may result in adverse ecological impacts and threaten communities. Public acceptance is a critical component of developing and implementing successful management programs. This study examines the factors that influence citizen support for agency fuel reduction treatments over time—particularly prescribed fire and mechanical vegetation removal. This paper presents findings from a longitudinal study examining resident beliefs and attitudes regarding fire management and fuels treatments in seven states: Arizona, Colorado, Oregon, Utah, Michigan, Minnesota, and Wisconsin. The study was implemented in two phases over a 6-year period using mail surveys to residents of communities adjacent to federal lands in each location. Questions replicated measures from the original project as well as some new items to allow a more in-depth analysis of key concepts. The study design enables comparisons over time as well as between locations. We also assess the factors that influence acceptance of both prescribed fire and mechanical vegetation removal. Findings demonstrate a relative stability of attitudes toward fuels management approaches over time and suggest that this acceptance is strongly influenced by confidence in resource managers and beliefs that the treatments would result in positive outcomes.  相似文献   

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Public concern over the consequences of forest fire to wildland interface communities has led to increased resources devoted to fire suppression, fuel treatment, and management of fire events. The social consequences of the decisions involved in these and other fire-related actions are largely unknown, except in an anecdotal sense, but do occur at a variety of temporal and social organizational scales. These consequences are not limited to the fire event itself. Preparation for the possibility of a fire, actions that suppression agencies take during a fire, and postfire decisions all have consequences, if unknown currently. This article presents an "event-based" approach that can be useful for constructing and systematic discussion about the consequences of wildland fire to human communities. For each of the three major periods within this approach, agencies, communities, and individuals make decisions and take actions that have consequences. The article presents an integrated, temporally based process for examining these consequences, which is similar to others developed in the natural hazards and disaster management literature.  相似文献   

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Farm animal welfare in livestock production is a topical and important issue attracting growing interest of policy makers, consumers, stakeholders in the supply chain and others. While there is much public interest in the issue this is not reflected in the supply and market shares of animal food products that are produced under welfare standards that exceed legislative requirements. Given the obstacles to devising stricter legislative standards, higher welfare animal food products are mostly made available through market-based approaches. This paper discusses different challenges and opportunities for a range of public and consumer policies and makes recommendations on how these might be strengthened. The paper does not report primary empirical findings but assembles available knowledge on citizen and consumer attitudes and perceptions towards animal welfare from various research disciplines. We argue that in order for public and consumer policies to be (more) efficient and effective, it is important to develop a segmented and targeted strategy. This paper will thus elaborate on what information could and should be provided to whom. This implies the need for a good understanding of how people conceptualize farm animal welfare. Further, information provisioning should address the needs and expectations of those specific consumer segments most likely to be motivated to purchase higher welfare products. Based on the assembled information, opportunities and challenges for information provisioning and communication to the public and consumers are identified. The merits and limitations of different forms of information provisioning and animal welfare labelling are discussed and recommendations are set forth for future research.  相似文献   

5.
Latin American countries have an extensive biological diversity and a tropical or subtropical climate. This condition has advantages for development and for the implementation of biotechnological solutions for environmental problems. Environmental biotechnology could be used to enhance biodegradation, waste recovery, and also for the development of biotechnology-based products to diagnose and reduce environmental impacts such as biosensors, biopesticides, biofertilizers and biofuels. To generate new environmental biotechnological products, Latin American countries must not only overcome the known limitations associated with investment in science and technology and in human resource training, but also develop their own vision of using environmental biotechnology, adapted to the economic, and environmental context. Biotechnology used wisely as a tool for promoting sustainable development in Latin American countries may also contribute to the solution of problems that represent potential risks to society and the environment in general. This document discusses the context of the research and innovation in Latin American countries around environmental biotechnology and also reviews perspectives for the improvement of these developments.  相似文献   

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Wildland fire in the South commands considerable attention, given the expanding wildland urban interface (WUI) across the region. Much of this growth is propelled by higher income retirees and others desiring natural amenity residential settings. However, population growth in the WUI increases the likelihood of wildfire fire ignition caused by people, as humans account for 93% of all wildfires fires in the South. Coexisting with newly arrived, affluent WUI populations are working class, poor or otherwise socially vulnerable populations. The latter groups typically experience greater losses from environmental disasters such as wildfire because lower income residents are less likely to have established mitigation programs in place to help absorb loss. We use geographically weighted regression to examine spatial variation in the association between social vulnerability (SOVUL) and wildfire risk. In doing so, we identify “hot spots” or geographical clusters where SOVUL varies positively with wildfire risk across six Southern states—Alabama, Arkansas, Florida, Georgia, Mississippi, and South Carolina. These clusters may or may not be located in the WUI. These hot spots are most prevalent in South Carolina and Florida. Identification of these population clusters can aid wildfire managers in deciding which communities to prioritize for mitigation programming.  相似文献   

8.
Rising global interest in sustainability has triggered attention in indicators as a means of achieving a more sustainable world. Although the search for indicators has led to the development of criteria for good indicators, it has also been dominated by scientific elites. The consequences of such dominance leads to significant social and policy implications, particularly with regard to how the search for sustainability has become defined primarily as a technical/scientific exploration when it is actually a moral and ethical issue. Our discussion about sustainability and appropriate indicators centers on what constitutes the public interest, a question that requires inclusiveness and centers on the interface of science and policy. The paper reviews the rationale for selecting indicators, the functions they serve, and the implications and consequences involved when one sector—science—dominates the debate. The paper concludes with suggestions about appropriate roles of science, policy and the public in the indicator selection process.  相似文献   

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Since Russell and Burch (1959) suggested the principles of replacement, reduction, and refinement (3Rs) as a foundation for animal research, their influence has only grown in the research community. In this paper, we discuss whether the 3Rs can be constructively used as a prism to analyse decisions regarding the welfare of animals housed in zoos and aquariums (henceforth “zoo animals”). We analyse opportunities and challenges for each of the three Rs when applied to zoo animals. We discuss the following reasons to consider the use of the 3Rs in relation to zoo animals: (1) there are similarities between motivations for housing animals in zoos and using them in research that are ethically relevant to consider; (2) the professional zoo community has committed to progress towards evidence-based best practice models to ensure and enhance the welfare of animals housed in zoos; and (3) there is a growing public concern regarding the welfare of zoo animals which can, to some extent, be met by viewing current practices through the prism of the 3Rs.

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赵卉  刘永祺 《四川环境》2008,27(2):60-63
本文目的在于讨论和分析二氧化碳捕获和储存技术项目(CCS)作为清洁发展机制(CDM)项目的障碍和机遇。CCS被视为减少CO2人为排放量的选择方案之一,但在发展中国家,该技术面临着政策、成本和技术上的挑战。对这些国家而言,CDM几乎是发展CCS的唯一动机。本文分析了CCS作为CDM项目面临的项目边界、持久性、渗漏和可持续发展性的问题,并展望了未来的发展趋势。  相似文献   

12.
Disasters evolving from hazards are a persistent and deadly occurrence in the United States. Despite this, hazard alerts have remained spatially vague, temporally imprecise, and lack actionable information. These deficiencies indicate a divide between the status quo and what is possible given modern environmental models, geographic information systems (GIS), and smartphone capabilities. This work describes an alternative, prototype system, “FloodHippo,” which integrates operational model outputs, cloud‐based GIS, and expanded communication channels to provide personal and interactive disaster alerts for floods. The precepts and methods underpinning FloodHippo apply equally to other disasters that evolve over space and time, presenting the opportunity for a more intelligent disaster response system. The development of such a system would not only minimize current shortcomings in disaster alerts but also improve resilience through individual action, along with community, academic, and federal cooperation.  相似文献   

13.
秦皇岛经济技术开发区正迎来自身发展的新阶段,经济社会发展与资源环境约束的矛盾越来越突出。针对开发区现存的大气污染、水污染、固体废弃物的处理处置等环境问题,论述了当前的环境形势和环保工作面临的机遇与挑战,并在此基础上对未来环保工作思路进行了展望,结合实际,提出了将促进工业低碳化发展、促进城市低碳化运营、逐步增加碳汇能力、促进能源低碳化供给等方式作为营建低碳城市的建设战略。  相似文献   

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本文着重分析了入世给中国环境保护事业带来的挑战和机遇。作者认为,入世在短期内将给中国的环境状况和环境保护带来沉重的压力;但从长远来看,入世将改善我国的环境状况并推动环境保护的发展。  相似文献   

15.
潘成荣,安徽省环境科学院总工程师、安徽省杰出专业技术人才。他在展望十二五环保事业的发展前景时,满怀憧憬和信心。在他看来,国家对环境保护的高度重视将为安  相似文献   

16.
It is difficult to make general recommendations that apply to all ecosystems. There is still a relative dearth of studies that allow the manager or visitor to come up with specific practices that are the best for their area. The preferred method of disposal remains to dig a small hole (cat hole) and bury the waste. Other site specific methods are also discussed. Treatment of drinking water has become standard practice for most backcountry travel. With such treatment, there is little evidence currently to suggest that the health hazard to humans is great enough to impose further regulation in areas currently using cat holes.  相似文献   

17.
There is a strong political will to decrease CO2 emissions. Although the steel industry only accounts for some 5% of worldwide CO2 emissions (which totalled 1,200 million tonnes per annum in the late 1990s), it will be strongly affected by this. The EU, for example, is putting up strong economic incentives for reductions. This is taking place at a time when demand for steel products is greater than ever. To radically change existing processes and production routes to decrease the CO2 emissions would be extremely expensive, even if it were possible. Nevertheless, many of the solutions which have been discussed seem to go in this direction. The other alternative discussed seems to be the creation of process solutions and alterations that lead to a focusing of CO2 streams, i.e., much higher CO2 concentrations in flue gases than today, for entrapment of the CO2 so that it is not discharged into the atmosphere. These solutions are feasible, but expensive.

However, there exists today a number of solutions and technologies which, if fully implemented, could substantially decrease CO2 emissions without seriously altering current methods of operation; they are short-term viable solutions. The present paper reviews and discusses such technologies, throughout the steel production paths. If these solutions are fully implemented, the combined impact on CO2 emissions from the steel industry worldwide is estimated to be a reduction of 100–150 million tonnes of CO2 per annum, i.e., current emissions can be reduced by some 8–10% within a relatively short time span.  相似文献   

18.
The need for cross-disciplinary scientific inquiries that facilitate improved natural resource management outcomes through increased understanding of both the biophysical and human dimensions of management issues has been widely recognized. Despite this broad recognition, a number of obstacles and barriers still sometimes challenge the successful implementation of cross-disciplinary approaches. Improving understanding of these challenges and barriers will help address them and thereby foster appropriate and effective utilization of cross-disciplinary approaches to solve natural resource management challenges. This research uses a case study analysis of the United States National Estuarine Research Reserve System to improve understanding of the critical factors that influence practitioners’ decisions related to incorporating social science into their natural resource management work. The case study research is analyzed and evaluated within a Theory of Planned Behavior framework to (1) determine and describe the factors that predict practitioners’ intent to incorporate social science into their natural resource related activities and (2) recommend potential strategies for encouraging and enabling cross-disciplinary approaches to natural resource management. The results indicate that National Estuarine Research Reserve practitioners’ decisions related to incorporating social science are primarily influenced by (1) confidence in their own capability to incorporate social science into their work and (2) beliefs about whether the outcomes of incorporating social science into their work would be valuable or beneficial.  相似文献   

19.
陈灵 《环境技术》2006,24(3):10-14,32
当电工电子产品陷入火灾后因燃烧而产生的烟雾,除含有毒性物质外,其模糊性(不透明性)会妨碍受害者逃生而造成伤亡.烟模糊试验适用于测量和评估这种危险性.  相似文献   

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