Journal article

National post-2020 greenhouse gas targets and diversity-aware leadership

Malte Meinshausen, Louise Jeffery, Johannes Guetschow, Yann Robiou du Pont, Joeri Rogelj, Michiel Schaeffer, Niklas Hoehne, Michel den Elzen, Sebastian Oberthuer, Nicolai Meinshausen



Achieving the collective goal of limiting warming to below 2°C or 1.5°C compared to pre-industrial levels requires a transition towards a fully decarbonized world. Annual greenhouse gas emissions on such a path in 2025 or 2030 can be allocated to individual countries using a variety of allocation schemes. We reanalyse the IPCC literature allocation database and provide country-level details for three approaches. At this stage, however, it seems utopian to assume that the international community will agree on a single allocation scheme. Here, we investigate an approach that involves a major-economy country taking the lead. In a bottom-up manner, other countries then determine what they consid..

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Awarded by Australian Research Council (ARC) Future Fellowship

Funding Acknowledgements

We acknowledge the work by IAM modellers that contributed to the IPCC AR5 scenario database and IIASA for hosting the IPCC AR5 Scenario Database. M. Meinshausen is the recipient of an Australian Research Council (ARC) Future Fellowship (grant number FT130100809). Furthermore, we offer thanks for discussions and comments on an earlier version of this manuscript by P. Christoff, R. Eckersley, K. Dooley and R. Lethbridge, and general discussions with N. Wilke, C. Zerger and L. Morgenstern.