中国碳金融交易金融支持的路径探讨

低碳经济是当前全世界关注的话题,也引发了碳金融市场的迅速发展。该文从中国碳金融市场现状入手,提出了构筑中国碳金融市场体系的设想,包括建立银行主导型的碳金融市场体系;建立新的碳金融政策性银行;鼓励商业银行加强对节能减排项目的资金支持以及设立碳基金等。     

Comparison of Different Analytical Methods for the Determination of Carbon Monoxide in Postmortem Blood

The determination of carbon monoxide (CO) and carboxyhemoglobin (COHb) is of utmost importance in forensic toxicology to determine the cause of death in cases of CO poisoning, fire, and explosions. To this end, reliable and updated analytical methods are required. In this paper, four different methods for the determination of carbon monoxide in postmortem blood samples were compared: (i) the spectrophotometric determination of COHb applying the method proposed by Rodkey and modified by Beutler–West, (ii) the spectrophotometric determination of CO using a micro-diffusion-based method, (iii) the determination of CO by gas chromatography coupled to a TCD detector, and (iv) the determination of COHb by blood gas analysis. Three postmortem blood samples were analyzed with all methods, and the results were comparable. The applied methodologies showed different features depending on the sensitivity, sample preparation, and volume. The HS-GC/TCD method in our hand was the most appropriate, on postmortem samples, and versatile to apply. Unfortunately, only a limited number of postmortem blood samples were available for this study due to the rarity of that kind of intoxication in our jurisdiction.     

Evaluation of the Simultaneous Analysis of Organic and Inorganic Gunshot Residues Within a Large Population Data Set Using Electrochemical Sensors*,†

The increasing demand for rapid methods to identify both inorganic and organic gunshot residues (IGSR and OGSR) makes electrochemical methods, an attractive screening tool to modernize current practice. Our research group has previously demonstrated that electrochemical screening of GSR samples delivers a simple, inexpensive, and sensitive analytical solution that is capable of detecting IGSR and OGSR in less than 10 min per sample. In this study, we expand our previous work by increasing the number of GSR markers and applying machine learning classifiers to the interpretation of a larger population data set. Utilizing bare screen-printed carbon electrodes, the detection and resolution of seven markers (IGSR; lead, antimony, and copper, and OGSR; nitroglycerin, 2,4-dinitrotoluene, diphenylamine, and ethyl centralite) was achieved with limits of detection (LODs) below 1 µg/mL. A large population data set was obtained from 395 authentic shooter samples and 350 background samples. Various statistical methods and machine learning algorithms, including critical thresholds (CT), naïve Bayes (NB), logistic regression (LR), and neural networks (NN), were utilized to calculate the performance and error rates. Neural networks proved to be the best predictor when assessing the dichotomous question of detection of GSR on the hands of shooter versus nonshooter groups. Accuracies for the studied population were 81.8 % (CT), 88.1% (NB), 94.7% (LR), and 95.4% (NN), respectively. The ability to detect both IGSR and OGSR simultaneously provides a selective testing platform for gunshot residues that can provide a powerful field-testing technique and assist with decisions in case management.     

Kyoto Mechanisms: Key Issues for Policy-makers for COP-6

This article provides an assessment of the "Kyoto mechanisms" – joint implementation, Clean Development Mechanism (CDM) and emissions trading established pursuant to Articles 6, 12 and 17 of the Kyoto Protocol. It focuses on significant policy issues raised by supplementarity, liability, equity and the design considerations relevant to operationalizing the mechanisms nationally and internationally.     

Powdered Activated Carbon: An Alternative Approach to Genomic DNA Purification

Forensic evidence samples are routinely found as stains on various substrates, which may contain substances known to inhibit polymerase chain reaction (PCR). The goal of this study was to evaluate post‐Chelex^®100 purification using powdered activated carbon (PAC). Mock crime scene DNA extracts were analyzed using quantitative PCR and short tandem repeat (STR) profiling to test the DNA recovery and inhibitor removal using PAC with those of the Amicon^®Ultra 100K. For extracted bloodstains on soil and wood substrates, PAC and Amicon^®Ultra 100K generated similar DNA yield and quality. Moreover, the two methods significantly decreased the concentration of humic substances and tannins compared to nonpurified extracts (p < 0.001). In instances where extracts contained indigo dye (bloodstains on denim), Amicon^®Ultra 100K performed better than PAC due to improved amplifiability. Efficient adsorption of humic substances and tannins, which are common inhibitors, indicates PAC's potential application in the purification of high‐template DNA extracts.     

Sectoral Opposition to Carbon Taxes in the EU – a Myopic Economic Approach

Over 10 years ago the EU Commission proposed a directive on carbon taxes, but faced so much domestic resistance that agreement was not reached until last year – and after it had been considerably watered down. The aim of this paper is to look into economic reasons for the political infeasibility of extensive carbon taxes. Since opposition is believed to arise prior to the policy implementation, the cost estimates have a myopic character compared with market estimates, in the sense that sectors are presumed to take into account their own substitution opportunities, but disregard changes in other sectors as well as the macroeconomic welfare gains from a tax regime. With this myopic approach, we estimate and compare costs of emissions cuts across sectors and across countries in the EU, showing how different sectors might have anticipated the impacts from an expected carbon tax. This focus illustrates that what seems to be cost-effective and to the best for the region on paper turned out too controversial to be politically feasible.     

Norway and Emissions Trading: From Global Front-Runner to EU Follower

A striking convergence has taken place in the design of the Norwegian and EU greenhouse gas emissions trading systems from 1998 to 2004. This article argues that the Norwegian adaptation to the EU did not take place as a consequence of perceived legal obligations under the European Economic Area agreement. Nor did it take place due to Norwegian actors being persuaded about the merits of the EU design. The main explanation has to do with interests. The EU market and politics are of course generally very important for Norway. However, before the US pulled out of the Kyoto Protocol in 2001, the Norwegian outlook in climate politics was global. The US pull-out accelerated the development and hence the attractiveness of the EU trading system and resulted in EU emissions trading as the most probable and possibly only international market for Norway to link up to. Hence, this analysis provides further support to the importance of being sensitive to the global context and institutional interaction when analyzing the relationship between the EU and its neighboring countries.     

Emissions Rights and their Transferability: Equity Concerns over Climate Change Mitigation

Existing literature on equity considerations for climate change mitigation has largely focused on fair burden-sharing at an inter-national level without adequate attention to equity concerns at the intra-national level. However, disparities between regions and income groups within nations pose perhaps more equity concerns over climate change mitigation than those between nations. While international equity can be agreed upon via political negotiation among nations, the poor in both developed and developing countries may not be guaranteed their fair allocation of emissions rights because the necessary institutional framework has yet to be established at both international and national levels. This paper distinguishes three parts of emissions rights and discusses their transferability in view of equity concerns. The author suggests that basic necessity emissions rights are not transferable and non-necessity emissions are fully marketable, while individual contributions to state are subject to collective decision-making or political manipulation at the international level. The exact share of each of the three parts is subject to further investigation, but unlimited free trading of emissions rights is likely to result in equity concerns at both inter- and intra-national levels. Further examination in quantitative terms would represent an interesting case study for a better understanding of the issue.     

Evidence of Premeditation in Skin Messages in Suicide

A 34‐year‐old man with manic‐depressive disorder was found dead sitting in a vehicle with a hose running from the exhaust pipe to the cabin. Numerous suicide notes were found inside his house. At autopsy, the decedent was wearing jeans and a long‐sleeved windcheater. Upon removal of his clothes, a series of messages were also found written on the legs and forearm. Death was due to carbon monoxide toxicity with a blood level of carboxyhemoglobin of 84%. Skin messages represent a rare form of suicide note that may suggest that a suicide has not been planned, as the decedent may have used the nearest surface to write on. This case demonstrates, however, that skin messages may be more organized, being written prior to dressing and setting up the fatal episode. They also may compliment other notes and messages.