26,976 research outputs found

    Toward a framework for implementation of climate change treaty through self-enforcing mechanisms

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    Global warming caused by accumulation of emissions of greenhouse gases (GHGs) is a public bad, addressing which requires collective action by all the countries of the world. Under the United Nations Convention on Climate Change (UNFCCC), most countries have negotiated the Kyoto Protocol for GHG emissions control to stabilize climate change. Several issues about the Protocol remain unresolved -- first, most of the significant countries are required to take a decision on whether or not to sign such a protocol, which has large-scale implications for their energy and industrial sectors and economic well-being; second, climate change mitigation is a public good entailing that all the countries would stand to gain due to mitigation action taken by a sub-group of one or more countries; and third, there exists no supra-national authority to enforce such a protocol for the individual sovereign nations. Thus, commitment to cooperate on an international agreement on climate change control remains tenuous. Formally, such a cooperative model is likely to be unstable. The paper discusses the pros and cons of the already proposed international cooperative mechanisms toward climate change mitigation and highlights the problem of information revelation, particularly related to the abatement issues. In this context, it attempts to outline a structure of a self-enforcing burden sharing mechanism for climate change mitigation in an incomplete information framework. The mechanism is an adoption of the well-known Vickrey-Clarke-Groves mechanism, widely used in mechanism design theory.Climate change negotiations; cooperative games; stable coalitions; self-enforcing mechanism

    Enforcing International Law: Implications for an Effective Global Warming Regime

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    Syftet med denna studie var att undersöka den antibakteriella effekten hos ett polyestertyg med tunna invÀvda koppartrÄdar. FrÄgestÀllningen som skulle besvaras var ifall koppartyget hade en baktericid eller bakteristatisk effekt. Koppartyget Àr Ànnu i prototypstadie och om det visar sig ha antibakteriella egenskaper Àr det tÀnkt att anvÀndas inom klinisk verksamhet för att förhindra bakterietillvÀxt i sÄr och andra kÀnsliga lokaler. Koppar Àr ett essentiellt spÄrÀmne, men har ocksÄ antimikrobiella egenskaper som utövas genom ett brett spektra av mekanismer dÀr skador pÄ cellmembranet Àr en av de viktigare. Metoderna som anvÀndes för att inokulera bakterier pÄ tyget var absorptionsmetoden, dÀr en nÀringsbuljong innehÄllande Staphylococcus aureus ATCC 6538 pipetterades pÄ tygproverna, och transfermetoden dÀr tygproverna trycktes mot en agar som racklats med peptonsaltlösning innehÄllande S. aureus. Totalantalet viabla bakterier per tygprov berÀknades efter kort kontakt (<1min) och inkubering (18-24 h vid 37±2°C) genom att rÀkna viable count. Resultaten efter inkubering visade signifikant skillnad i totalantal bakterier mellan koppartyget och negativ kontroll i tre av fyra försök. Kort kontakt visade tendens till viss antibakteriell effekt. Slutsatsen Àr att koppartyget skadade och dödade bakterier dÄ de fick inkubera pÄ tyget, medan fler försök behövs för att sÀkerstÀlla effekten av kort kontakt med koppartyget. The purpose of this study was to test the antibacterial effect of thin copper treads woven into a polyester fabric. The investigation was done by inoculation of Staphylococcus aureus strain ATCC 6538 to the fabric and evaluation of the number of viable cells post exposure by viable count. The issue to be answered was whether the copper fabric had a bactericide or bacteriostatic effect? The fabric is still in prototype stage, and if proven to have antibacterial properties the aim is to use it to prevent bacterial growth in wounds and other vulnerable locations in clinical care. Copper is an essential trace element, but also has antimicrobial properties through a wide range of mechanisms where cell membrane damage is one of the more important. Methods used for inoculation was the absorption method, where a nutrient broth containing S. aureus was pipetted on to the fabric specimens, and the transfer method where the fabric specimens were pressed onto an agar plate that had previously been spread with peptone salt solution containing S. aureus. Total number of bacteria per fabric specimen after short contact (<1 min) and incubation (18-24 h at 37±2°C) was calculated. Incubation showed significant difference in total number of bacteria between the copper fabric and negative control in three of four tests. Short contact showed a tendency of antibacterial effect. The conclusion was that the copper fabric harmed and killed bacteria during incubation but that more records would be needed to be sure about the effects of short contact on bacteria

    Taking up the Slack: Lessons from a Cap-and-Trade Program in Chicago

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    The Emissions Reduction Market System (ERMS), an emissions-trading program for volatile organic materials (VOMs) in Chicago, Illinois, has been characterized by emissions significantly below the annual allocation of emission allowances, allowance prices much lower than predicted, limited trading, and emission allowances that expire unused. Essentially, it appears that a fundamental prerequisite for a tradable allowance program is missing—there is no scarcity of allowances. We evaluate a variety of hypotheses that may explain why the ERMS cap does not appear to be affecting abatement behavior and identify three that contributed to the lack of scarcity in the ERMS program: (1) a baseline process that inflated the cap; (2) hazardous air pollutant regulations that contributed to VOM reductions at some sources; and (3) numerous facility shutdowns. We conclude that the ERMS experience illustrates the inherent unpredictability of economic, regulatory, and other factors when setting an emissions target; a conclusion that resonates with the recent experience of the European Union Emissions Trading Scheme. This argues for gathering reliable emissions data, developing sophisticated emissions projections, and making transparent assumptions about the impacts of other policies and regulations during the program planning and design phase. However, even with all these attributes, it is still difficult to anticipate every possible outcome. Thus, it is desirable to have robust mechanisms to address the uncertainties of emissions-trading markets and to make midcourse corrections if necessary. Finally, we offer some comments on how to think about the results of ERMS versus a hypothetical command and control program that might have been designed to reach the same environmental outcome.emissions-trading, ERMS, European Union, climate change

    Carbon market and climate negotiations.

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    In the wake of the Copenhagen Conference and the outstanding issue of shaping climate change mitigation for the period beyond that covered by the Kyoto protocol, this paper puts into context the various economic instruments available fot tackling climate change, and highlights the emergence, as a result of the framework of instruments provided by the Kyoto protocol, of carbon markets, (...)Economic instruments; Climate change; CO2; Carbon markets; Post-Kyoto;

    Ethical Emissions Trading and the Law

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    The idea of permit trading in the United States can be traced as far back as the 1970s, but emissions trading has really only became a popular and exportable idea with the more recent demands that environmental protection acknowledge economic pressures through such ideas as sustainable development. Now the idea of emissions trading has caught on in South America, China and Europe as well. Yet in the eagerness of governments and industry to work out the technical details and legal mechanics of the emissions trading tool, insufficient attention has been paid to its underlying legal and ethical assumptions. In this article, it is emphasized that emissions trading is a part of compliance with environmental law, not a market alternative to compliance. The difference between the two greatly effects and is affected by theories of rights. As part of the scheme of rights and accompanying duties, the author questions whether an implicit right to pollute has been created through emissions trading, as exemplified by the comparison of the systems in the U.S., China and Europe
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