961 resultados para Economic instruments for environmental protection


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Dans le cadre de la Western Climate Iniative, le Québec a déployé en 2012, un système de plafonnement et d’échange de droits d’émission de gaz à effet de serre (SPEDE). Il s’agit de l’un des premiers régimes de ce type en Amérique du Nord et celui-ci pourrait à terme, constituer l'un des maillons d’un marché commun du carbone à l’échelle du continent. Toutefois, le SPEDE appartient à une catégorie d’instruments économiques de protection de l’environnement encore peu connue des juristes. Il s’inscrit en effet dans la régulation économique de l’environnement et repose sur des notions tirées de la théorie économique, dont la rareté, la propriété et le marché. La thèse s’insère donc dans le dialogue entre juristes et économistes autour de la conception et de la mise en œuvre de ce type d’instrument. Afin d’explorer son architecture et de révéler les enjeux juridiques qui le traversent, nous avons eu recours à la méthode de l’analyse économique du droit. Celle-ci permet notamment de montrer les dynamiques d'incitation et d’efficacité qui sont à l'œuvre dans les règles qui encadrent le SPEDE. Elle permet également à donner un aperçu du rôle décisif joué par la formulation des règles de droit dans l’opérationnalisation des hypothèses économiques sous-jacentes à cette catégorie d’instrument. L’exploration est menée par l’entremise d’une modélisation progressive de l’échange de droits d’émission qui prend en compte les coûts de transaction. Le modèle proposé dans la thèse met ainsi en lumière, de manière générale, les points de friction qui sont susceptibles de survenir aux différentes étapes de l'échange de droits d'émission et qui peuvent faire obstacle à son efficacité économique. L’application du modèle aux règles du SPEDE a permis de contribuer à l’avancement des connaissances en donnant aux juristes un outil permettant de donner une cohérence et une intelligibilité à l’analyse des règles de l’échange. Elle a ainsi fourni une nomenclature des règles encadrant l’échange de droits d’émission. Cette nomenclature fait ressortir les stratégies de diversification de l’échange, d’institutionnalisation de ses modalités ainsi que les enjeux de la surveillance des marchés, dont celui des instruments dérivés adossés aux droits d’émission, dans un contexte de fragmentation des autorités de tutelle.

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This paper explores the link between environmental policy and economic growth by employing an extension of the AK Growth Model. We include a state equation for renewable natural resources. We assume that the change in environmental regulations induces costs and that economic agents also derive some utility from capital stock accumulation vis-`a-vis the environment. Using the Hopf bifurcation theorem, we show that cyclical environmental policy strategies are optimal, providing theoretical support for the Environmental Kuznets Curve.

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"November 1995."

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In cooperation with State agricultural experiment stations, Cooperative Extension Services, other state agencies, U.S. Envioronmental Protection Agency.

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In cooperation with state agricultural experiment stations, Cooperative Extension Service, other state agencies, U.S. Environmental Protection Agency.

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Air transport has become a vital component of the global economy. However, greenhouse-gas emissions from this sector have a significant impact on global climate, being responsible for over 3.5% of all anthropogenic radiative forcing. Also, the accrued visibility of aircraft emissions greatly affects the public image of the industry. In this context, incentive-based regulations, in the form of price or quantity controls, can be envisaged as alternatives to mitigate these emissions. The use of environmental charges in air transport, and the inclusion of the sector in the European Union Emissions Trading Scheme (EU ETS), are considered under a range of scenarios. The impacts of these measures on demand are estimated, and results suggest that they are likely to be minimal-mainly due to the high willingness to pay for air transport. In particular, in the EU ETS scenario currently favoured by the EU, demand reductions are less than 2%. This may not be true in the longer run, for short trips, or if future caps become more stringent. Furthermore, given current estimates of the social Cost Of CO2 as well as typical EU ETS prices, supply-side abatement would be too costly to be encouraged by these policies in the short term. The magnitude of aviation CO2 emissions in the EU is estimated, both in physical and monetary terms; the results are consistent with Eurocontrol estimates and, for the EU-25, the total social cost of these emissions represents only 0.03% of the region`s GDP. It is concluded that the use of multisector policies, such as the EU ETS, is unsuitable for curbing emissions from air transport, and that stringent emission charges or an isolated ETS would be better instruments. However, the inclusion of aviation in the EU ETS has advantages under target-oriented post-2012 scenarios, such as policy-costs dilution, certainty in reductions, and flexibility in abatement allocation. This solution is also attractive to airlines, as it would improve their public image but require virtually no reduction of their own emissions, as they would be fully capable of passing on policy costs to their customers.

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The Institute of Public Health in Ireland is an all-island body which aims to improve health in Ireland by working to combat health inequalities and influence public policies in favour of health. The Institute promotes co-operation in research, training, information and policy in order to contribute to policies which tackle inequalities in health. Over the past six years the Institute has worked closely with the Department of Health and Children and the Department of Health, Social Services and Public Safety in Northern Ireland to build capacity for Health Impact Assessment. The Institute takes the view that health is determined by policies, plans and programmes in many sectors outside the health sector as well as being dependent on access to and availability of first class health services. The importance of other sectors is encapsulated in a social determinants of health perspective which recognises that health is largely shaped and influenced by the physical, social, economic and cultural environments in which people live, work and play. Figure 1 illustrates these multi-dimensional impacts on health and also serves to highlight the clear and inextricable links between health and sustainable development. Factors that impact on long-term sustainability will thus also impact on health.