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Distributional aspects of emissions in climate change integrated assessment models

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The recent failure of Copenhagen negotiations shows that concrete actions are needed to create the conditions for a consensus over global emission reduction policies. A wide coalition of countries in international climate change agreements could be facilitated by the perceived fairness of rich and poor countries of the abatement sharing at international level. In this paper two popular climate change integrated assessment models are used to investigate the path and decompose components and sources of future inequality in the emissions distribution. Results prove to be consistent with previous empirical studies and robust enough to model comparison and show that gaps in GDP across world regions will still play a crucial role in explaining different countries contributions to global warming.

Nicola Cantore