Accounting for impacts due to climate change in GHG mitigation burden sharing

This study focusing on the climate equity debate in the context of GHG mitigation explores design of a framework that is based on the ‘common but differentiated responsibilities’ principle of the United Nations Framework Convention on Climate Change (UNFCCC). Besides incorporating the widely recognized differences among countries such as current and historic GHG emissions and capabilities, the framework also accounts for their relative vulnerabilities to climate change. The study argues that since climate change impacts are akin to global public bad, compensation, especially for the poorer nations who are also the worst victims of the climate change impacts, could be conceived in the form of greater share in the GHG emission rights. This, it is argued, would provide the much needed space to grow for the poorer countries and facilitate enhancement of their adaptive capacity to face climate and other threats. It is also argued that the framework results accord with one of the welfare principles, the Weak Equity Axiom (WEA) (Sen, A. K. (1973). On economic inequality. Delhi: Oxford University Press), and yield an equitable distribution of burden.

Policy relevance

The present study attempts to inform the equity debate in the international climate negotiations. The multi-criteria framework of the study suggests a means to incorporate various national attributes which could result in an equitable sharing of the GHG mitigation burden among countries. The study results highlight that impacts due to climate change could provide an important and equitable basis for burden sharing in the present and in future. The study also highlights the significance of scientific literature on climate change impact assessments in informing the future policy dialogue in the climate negotiations.     

Systematics of Mössbauer absorption areas in ordinary chondrites and applications to a newly fallen meteorite in Jodhpur,India

Abstract— Mössbauer absorption areas corresponding to ⁵⁷Fe in olivine, pyroxene, troilite, and the metallic phase in ordinary chondrites are shown to exhibit certain systematic behaviors. H chondrites occupy 2 distinct regions on the plot of metallic phase absorption area versus silicate absorption area, while L/LL chondrites fall in a separate region. Similar separation is also observed when pyroxene absorption area is plotted against olivine absorption area. The one‐dimensional plot for the ratio of olivine area to pyroxene area separates L and LL chondrites. Based on these systematics, a newly fallen meteorite at Jodhpur, India is suggested to be an LL chondrite.