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21.
If the threshold that triggers climate catastrophe is known with certainty, and the benefits of avoiding catastrophe are high relative to the costs, treaties can easily coordinate countries' behavior so as to avoid the threshold. Where the net benefits of avoiding catastrophe are lower, treaties typically fail to help countries cooperate to avoid catastrophe, sustaining only modest cuts in emissions. These results are unaffected by uncertainty about the impact of catastrophe. By contrast, uncertainty about the catastrophic threshold normally causes coordination to collapse. Whether the probability density function has “thin” or “fat” tails makes little difference.  相似文献   
22.
In general, approved Total Allowable Catches (TACs) are higher than proposed TACs by the scientific assessment and reported landings approved are higher than approved TAC. We build a simple enforcement agency’s behavior model that generates—as a rational behavior—those two facts. The model has two ingredients. First, there exists illegal fishing generated by an imperfect enforcement technology; second, the enforcement agency cannot commit on announced penalties. We show that lack of commitment increases the potential benefits for national enforcement agency of deviating from proposal (scientific optimal) quotas. Although the enforcement agency wants to announce a low quota target to induce a low level of illegal harvest, it will find optimal to revise the quota announced in order to reduce penalties and improve fishermen welfare. Therefore, agencies find it optimal to approve higher quotas than that proposed by the scientific advice. Our main result is to show that when full compliance is not possible, and national agencies cannot commit, the introduction of Individual Transferable Quotas increases the potential benefits for agencies of deviating from the optimal proposed TAC by the scientific advised.  相似文献   
23.
Enforcement gaps are an especially vexing problem in China due to pervasive "pro-growth" local government priorities, the weak administrative capacity of environmental agencies themselves, and relatively weak levels of societal support for a cleaner environment. This study seeks to examine this problem from the perspective of the local enforcement officials by empirically examining the relationships between these and other influences on their perceptions of enforcement effectiveness. Using samples of enforcement officials from the fast-growing cities of Chengdu, Dalian, and Guangzhou, this study finds that many of the more commonly cited problems related to regulatory enforcement were not as influential in accounting for variations in perceptions of enforcement effectiveness than the current literature might suggest. Moreover, this study also finds that the pattern of influences varies greatly across jurisdictions, with only the officials' belief in the legitimacy of the governments' policies being significant in all three samples. Strong influences on perceptions of enforcement effectiveness in two of the three samples include the environmental values of enforcement officials, their perceptions of organizational capacity for enforcement, and their assessment of government support for environmental protection. Although government support was found to be a strong predictor of enforcement effectiveness in two of the three samples, the influence of societal support had a somewhat mixed and more complicated effect. In addition, this study suggests that further improvements in enforcement effectiveness may be possible by cultivating or selecting enforcement officials with strong environmental values and beliefs in the legitimacy of the government's environmental policy to take charge of enforcement. Because it is generally accepted that local environmental protection bureaus are generally upgrading their organizational capacity for improvement as the result of increasing central government support for environmental protection and institutional restructuring, and because environmental awareness in China is growing, this study suggests that some incremental progress is likely in China's efforts to close the enforcement gap. Unfortunately, such improvements are likely to be masked by the steep trajectory of economic growth, the narrow scope of regulatory control (i.e., with scant attention paid to nonindustrial sources), and the migration of industrial pollution to rural areas.  相似文献   
24.
This is part one of a two-part discussion, in which we will provide an overview of the use of aerial photography, topographic mapping and photogrammetry in environmental enforcement actions. The visualization of spatial relationships of natural and man-made features can focus the scope of environmental investigation, and provide a simple, yet quantitative, historical record of changes in conditions on a site. Aerial photography has been used in environmental remote sensing since the early part of the 20th century. Aerial photos are valuable tools for environmental assessment because they provide objective, detailed documentation of surface conditions at a specific time. Furthermore, they can generally be obtained even in cases where access on the ground is denied to investigators. From aerial photos, precise quantitative information can be collected using photogrammetry. Such measurement and positional data can be produced in digital format for input into a Geographic Information System (GIS) for computerized analysis and display. Other information derived from aerial photographs requires specialized photointerpretive skills and experience. These include the recognition of vegetation mortality, oil-spill damage, and the ecological quality of water bodies. The location, extent and historical change of hazardous waste sites can be documented on topographic maps. These maps are often created from aerial photographs, and display the extent and location of real-world features by symbolizing them. The major advantage of maps over aerial photos is that maps can show things that are not visible from the air, while omitting unnecessary and distracting information. Because maps are derived products, they may contain bias in content and presentation, and they must be backed up by careful documentation and quality assurance protocols.  相似文献   
25.
PROBLEM: A prior study indicated that zero tolerance laws differ in their enforceability and likelihood of enforcement, with California's law being easier to enforce than New York's, and New Mexico's being the hardest of all. The question is, do these differences in enforcement affect teenagers' knowledge and perception of these laws? METHOD: A telephone survey was conducted to investigate awareness of the laws among 17-20 year olds in these three states and perceptions of enforcement. RESULTS: Estimated percentages of teenagers who knew of the laws were much higher in New York and California (71% and 65%, respectively) than in New Mexico (34%). Perceptions that police were enforcing the law, that licenses could be suspended, and that penalties were often applied were also lowest in New Mexico. IMPACT ON INDUSTRY: The potential of zero tolerance laws will not be realized without better awareness among young people. Full enforcement of the laws accompanied by publicity about the enforcement is recommended. Changes to the laws and their application may encourage enforcement efforts.  相似文献   
26.
For major federal environmental statutes in the United States, primary monitoring and enforcement responsibilities rest with most states. The Environmental Protection Agency (EPA) is charged with overseeing state efforts and has at its disposal formal tools to discipline lax states, tools which are rarely used. In this paper, we explore the extent to which the EPA's now-defunct Clean Air Act Watch List served as an informal tool for influencing the enforcement activities of state regulators. We estimate event studies designed around the primary listing criteria for the Watch List. Our empirical results are consistent with the average state regulator acting to reduce the chances of their facilities appearing on the Watch List. We also examine heterogeneity in the response to the Watch List between two states with high numbers of regulated facilities, Texas and California. We find a larger change in enforcement activity under the Watch List among state and local regulators in Texas compared to California.  相似文献   
27.
比较了GB18918—2002《城镇污水处理厂污染物排放标准》与相关行业和国家标准的特点,指出执行GB18918—2002《城镇污水处理厂污染物排放标准》的关键应是充分了解和掌握被执行对象所处的地理位置、建厂年限、处理工艺、污染物排放去向及用途等基本信息。提出选择控制项目的确定、监测能力的开发、大气污染物的配套治理手段和超标项目的配套管理办法是执行GB189182002《城镇污水处理厂污染物排放标准》时尚需深入解决的问题。  相似文献   
28.
An experimental analysis of compliance in dynamic emissions markets   总被引:1,自引:0,他引:1  
Two important design elements for emission trading programs are whether and to what extent firms are able to bank emissions permits, and how these programs are to be enforced. In this paper we present results from laboratory emissions markets designed to investigate enforcement and compliance when these markets allow permit banking. Banking is motivated by a decrease in the aggregate permit supply in the middle of multi-period trading sessions. Consistent with theoretical insights, our experiments suggest that high permit violation penalties have little deterrence value in dynamic emissions markets, and that the main challenge of enforcing these programs is to motivate truthful self-reports of emissions.  相似文献   
29.
为推进省以下环保机构监测监察执法垂直管理制度改革,文章围绕《关于省以下环保机构监测监察执法垂直管理制度改革试点工作的指导意见》,厘清省以下环保机构监测监察执法垂直管理改革涉及到不同机构的不同垂直管理模式,对各地在改革试点中不逾越《意见》边界,在框架内做好不同环保机构和不同管理模式的制度设计,具有一定的指导意义。  相似文献   
30.
Although environmental management in Turkey is evolving, its performance needs to be assessed in terms of the extent to which polluters and dischargers are complying with their legal obligations. In spite of this necessity, however, not a single study evaluating the effectiveness of command-and-control strategy of environmental management has been conducted. It is for this reason that it was decided to conduct an analysis of the impact of environmental legislation on a major industrial area in Turkey. Accordingly, Turkish environmental legislation was analyzed, and all relevant obligations and responsibilities of industry are identified. Based upon this appraisal, a questionnaire was prepared and used to conduct interviews in Tuzla, Istanbul. From the results, it can be concluded that environmental compliance performance of industry is low. The total of 92 parameters has been questioned. Fifty-three parameters have been found as satisfactory compliance, whereas 26 parameters have been classified as partial compliance and 13 as unsatisfactory compliance. The most important reason for inadequate performance is the lack of an effective national and local environmental compliance management system. The other leading reasons are found to be low-level environmental consciousness of the people, absence of environmental management system at the sites, inadequacies in environmental subsidies, and insufficiencies in public environmental infrastructure. Four recommendations are made to increase the effectiveness of compliance management: establishing an effective environmental compliance management system, accelerating public investment for environmental infrastructure, developing financial subsidies and incentive schemes for environmental investments, and encouraging voluntary initiatives.  相似文献   
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