RESUMEN
To achieve the goal of limiting global warming to 1.5 °C above preindustrial levels, net-zero emissions targets were proposed to assist countries in planning their long-term reduction. Inverse Data Envelopment Analysis (DEA) can be used to determine optimal input and output levels without sacrificing the set environmental efficiency target. However, treating countries as having the same capability to mitigate carbon emissions without considering their different developmental stages is not only unrealistic but also inappropriate. Therefore, this study incorporates a meta-concept into inverse DEA. This study adopts a three-stage approach. In the first stage, a meta-frontier DEA method is adopted to assess and compare the eco-efficiency of developed and developing countries. In the second stage, the specific super-efficiency method is adopted to rank the efficient countries specifically focused on carbon performance. In the third stage, carbon dioxide emissions reduction targets are proposed for the developed and developing countries separately. Then, a new meta-inverse DEA method is used to allocate the emissions reduction target to the inefficient countries in each of the specific groups. In this way, we can find the optimal CO2 reduction amount for the inefficient countries with unchanged eco-efficiency levels. The implications of the new meta-inverse DEA method proposed in this study are twofold. The method can identify how a DMU can reduce undesirable outputs without sacrificing the set eco-efficiency target, which is especially useful in achieving net-zero emissions since this method provides a roadmap for decision-makers to understand how to allocate the emissions reduction targets to different units. In addition, this method can be applied to heterogeneous groups where they are assigned to different emissions reduction targets.
Asunto(s)
Contaminación del Aire , Eficiencia , Contaminación del Aire/prevención & control , Carbono , Calentamiento Global/prevención & controlRESUMEN
A treaty to regulate the global antimicrobial commons can be appropriately framed around the model provided by multilateral environmental agreements. At the same time, it is not clear that a comprehensive treaty is the only possible entry point and other options, such as an agreement on technology transfer or funding may be apt starting points. Any legal instrument adopted to regulate the global antimicrobial commons needs to reflect the global South-North dichotomy and integrate the principle of common but differentiated responsibilities and respective capabilities. Further, it would need to go beyond environmental instruments that have been structured around the sovereign interests of negotiating states even when dealing with issues of global concern, such as climate change. The proposed legal instrument would also need to be based not just on the precautionary principle as a marker of the necessity to address the negative environmental and health impacts, but also be based on the interests of patients and integrate concerns raised in terms of the human right to health.
Asunto(s)
Antiinfecciosos , Derechos Humanos , Humanos , Cooperación InternacionalRESUMEN
Since 2011, the focus of international negotiations under the UNFCCC has been on producing a new climate agreement to be adopted in 2015. This phase of negotiations is known as the Durban Platform for Enhanced Action. The goal has been to update the global effort on climate for long-term cooperation. In this period, various changes have been contemplated on the design of the architecture of the global climate effort. Whereas previously, the negotiation process consisted of setting mandated targets exclusively for developed countries, the current setting requests of each country to pledge its contribution to the climate effort in the form of Intended Nationally Determined Contributions (INDCs). The shift away from establishing negotiated targets for rich countries alone towards a universal system of participation through intended contributions raised persistent questions on how exactly the new agreement can ensure equitable terms. How to conceptualize equity within the 2015 climate agreement, and beyond, is the focus of this paper. The paper advances a framework on equity, which moves away from substantive moral conceptions of burden allocation toward refining principles of public reason specially designed for the negotiation process under the UNFCCC. The paper outlines the framework's main features and discusses how it can serve a facilitating role for multilateral discussion on equity on a long-term basis capable of adapting to changing circumstances.