Sharing a quota on cumulative carbon emissions
Raupach, Michael R.; Davis, Steven J.; Peters, Glen Philip; Andrew, Robbie; Canadell, Josep G.; Friedlingstein, Pierre; Jotzo, Frank; Le Quéré, Corinne
Peer reviewed, Journal article
Submitted version
Permanent lenke
http://hdl.handle.net/11250/2484054Utgivelsesdato
2014Metadata
Vis full innførselSamlinger
- Journal articles [507]
Sammendrag
Any limit on future global warming is associated with a quota on cumulative global CO2 emissions. We translate this global carbon quota to regional and national scales, on a spectrum of sharing principles that extends from continuation of the present distribution of emissions to an equal per-capita distribution of cumulative emissions. A blend of these endpoints emerges as the most viable option. For a carbon quota consistent with a 2 °C warming limit (relative to pre-industrial levels), the necessary long-term mitigation rates are very challenging (typically over 5% per year), both because of strong limits on future emissions from the global carbon quota and also the likely short-term persistence in emissions growth in many regions.