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61.
This study investigates the idea that people’s willingness to offset flight-related carbon emissions is a function of the collective participation rate, which can be regarded as a social norm, towards carbon offsetting. Additionally, we reveal people’s preferences toward two other environmental policies; a baggage allowance and airline eco-efficiency index. A discrete choice experiment is designed and administrated among a sample of air travelers. The results indicate that carbon offsetting generates utility, with people gaining more utility when the collective participation rate is high. Additionally, it was found that the baggage allowance and the eco-efficiency index strongly influenced respondents’ airline choices. People also became more sensitivity towards a baggage allowance and the eco-efficiency label, when the collective offsetting rate was high. 相似文献
62.
Large high-speed craft carrying passengers and vehicles produce wake waves that are different from both conventional vessels and smaller fast vessels. Wakes from these high-speed craft can cause environmental problems (such as beach change, ecological disturbance, and damage to structures and archaeological sites) and safety problems (for navigation and for users of the beach and nearshore) in confined waters. As a consequence of the higher speed, the vessel wakes also have a longer period than wakes caused by conventional ships and may lead to substantial wave action in shallow water environments. In both New Zealand and Denmark, issues relating to high-speed craft wakes were not addressed until after the vessels had begun operation, and complex coastal management issues with possibly broader application have had to be addressed. Emerging management strategies have involved regulation using speed and wave height criteria. 相似文献
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64.
高速公路隧道工程环保问题研究 总被引:1,自引:1,他引:0
结合我国目前高速公路隧道工程的环保建设情况,针对高速公路隧道施工中涉及到的环境问题,分别对隧道前期勘察设计阶段、中期的施工阶段和后期的运营阶段提出了相应的的环境保护措施,可供公路工程勘测、设计、施工、运营及相关环保工作人员参考。 相似文献
65.
以溢油鉴定和溯源研究为主的环境法医学,被证明在海事行政执法中作用显著。文中在分析环境法医学的发展历史和定义的基础上,结合我国环境法医学的发展现状阐述了环境法医学在海事行政执法过程中的积极意义。 相似文献
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67.
This study analyzes consumer preferences for a new incentive program based on a point card to promote green consumption; the study also examines the program’s impact on bus utilization in South Korea. An ex-ante analysis was conducted to examine how consumer behavior can be modified based on varying incentive levels of the point card system. In addition, the effect of the system on consumers’ public transport utilization and resulting CO2 emissions reductions are analyzed. The adoption probability of the point card is forecast at about 93%, and annual CO2 emissions are forecast to decrease by 610 kt CO2. 相似文献
68.
Electric vehicles (EV) are often considered a promising technology to decrease external costs of road transport. Therefore, main external cost components are estimated for EV and internal combustion engine vehicles (ICEV). These include costs of accidents, air pollution, climate change, noise, and congestion. All components are estimated over the product lifetime and, where appropriate, differentiated according to fuel type, vehicle size as well as emission location and time. The advantage of this differentiation is, however, compensated by high uncertainties of most cost estimates. Overall, the external costs of EV and ICEV do not differ significantly. Only for climate change, local air pollutants in congested inner-cities, and noise some advantageous effects can be observed for EV. The advantages depend strongly on the national electricity power plant portfolio and potentially also on the charging strategy. Controlled charging might allow for higher emission reductions than uncontrolled charging of EV. 相似文献
69.
随着机动化水平的迅速提高,我国城市交通供给与交通需求的矛盾不断加剧,城市土地、环境等资源匮乏,城市交通畅通面临着越来越严峻的考验。论文将机动车发展对城市造成的直接影响归结为道路、停车、大气三大突出方面,提出了通过容量限制理智发展机动车的思路;进一步对城市路网容量、停车容量、环境容量进行了比较深入的研究,提出了城市机动车合理保有量的多容量限制双层规划模型,建立了交通流动态分布与交通系统容量的互动联系,为机动化水平与城市可持续发展之间的协调发展奠定了一定的理论基础,也为现代化城市的交通管理部门提供了一定的决策依据。 相似文献
70.
海洋中的赤潮现象及其防治对策 总被引:2,自引:0,他引:2
秦志高 《南通航运职业技术学院学报》2005,4(3):46-48
文章通过对赤潮案例、赤潮的成因及赤潮的危害等问题的分析,阐述了赤潮对世界经济的影响,提出了赤潮的预防、治理方法. 相似文献